71484700381 has 2 divisors, whose sum is σ = 71484700382. Its totient is φ = 71484700380.

The previous prime is 71484700379. The next prime is 71484700393. The reversal of 71484700381 is 18300748417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56382502500 + 15102197881 = 237450^2 + 122891^2 .

It is a cyclic number.

It is not a de Polignac number, because 71484700381 - 2¹ = 71484700379 is a prime.

It is a super-2 number, since 2×71484700381² (a number of 23 digits) contains 22 as substring.

Together with 71484700379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71484700321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35742350190 + 35742350191.

It is an arithmetic number, because the mean of its divisors is an integer number (35742350191).

Almost surely, 2^71484700381 is an apocalyptic number.

It is an amenable number.

71484700381 is a deficient number, since it is larger than the sum of its proper divisors (1).

71484700381 is an equidigital number, since it uses as much as digits as its factorization.

71484700381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 71484700381 in words is "seventy-one billion, four hundred eighty-four million, seven hundred thousand, three hundred eighty-one".