38549970779 has 8 divisors (see below), whose sum is σ = 39238215168. Its totient is φ = 37867737600.

The previous prime is 38549970761. The next prime is 38549970793. The reversal of 38549970779 is 97707994583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38549970779 - 2¹⁶ = 38549905243 is a prime.

It is a super-2 number, since 2×38549970779² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38549990779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489862 + ... + 1515515.

It is an arithmetic number, because the mean of its divisors is an integer number (4904776896).

Almost surely, 2^38549970779 is an apocalyptic number.

38549970779 is a deficient number, since it is larger than the sum of its proper divisors (688244389).

38549970779 is a wasteful number, since it uses less digits than its factorization.

38549970779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005605.

The product of its (nonzero) digits is 120022560, while the sum is 68.

The spelling of 38549970779 in words is "thirty-eight billion, five hundred forty-nine million, nine hundred seventy thousand, seven hundred seventy-nine".