379304377421 has 2 divisors, whose sum is σ = 379304377422. Its totient is φ = 379304377420.

The previous prime is 379304377411. The next prime is 379304377471. The reversal of 379304377421 is 124773403973.

It is an a-pointer prime, because the next prime (379304377471) can be obtained adding 379304377421 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275059340521 + 104245036900 = 524461^2 + 322870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-379304377421 is a prime.

It is a super-2 number, since 2×379304377421² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 379304377421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379304377411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189652188710 + 189652188711.

It is an arithmetic number, because the mean of its divisors is an integer number (189652188711).

Almost surely, 2^379304377421 is an apocalyptic number.

It is an amenable number.

379304377421 is a deficient number, since it is larger than the sum of its proper divisors (1).

379304377421 is an equidigital number, since it uses as much as digits as its factorization.

379304377421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 50.

The spelling of 379304377421 in words is "three hundred seventy-nine billion, three hundred four million, three hundred seventy-seven thousand, four hundred twenty-one".