38402735522 has 6 divisors (see below), whose sum is σ = 57604518993. Its totient is φ = 19201229192.

The previous prime is 38402735491. The next prime is 38402735603. The reversal of 38402735522 is 22553720483.

It can be written as a sum of positive squares in 2 ways, for example, as 37249386001 + 1153349521 = 193001^2 + 33961^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=138569.

It is a super-2 number, since 2×38402735522² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38402735522.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 207854 + ... + 346422.

Almost surely, 2^38402735522 is an apocalyptic number.

38402735522 is a deficient number, since it is larger than the sum of its proper divisors (19201783471).

38402735522 is an frugal number, since it uses more digits than its factorization.

38402735522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277140 (or 138571 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 38402735522 in words is "thirty-eight billion, four hundred two million, seven hundred thirty-five thousand, five hundred twenty-two".