38453200690 has 16 divisors (see below), whose sum is σ = 69256292760. Its totient is φ = 15372273280.

The previous prime is 38453200651. The next prime is 38453200757. The reversal of 38453200690 is 9600235483.

It can be written as a sum of positive squares in 4 ways, for example, as 16750312929 + 21702887761 = 129423^2 + 147319^2 .

It is a super-2 number, since 2×38453200690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107931 + ... + 1142110.

Almost surely, 2^38453200690 is an apocalyptic number.

38453200690 is a deficient number, since it is larger than the sum of its proper divisors (30803092070).

38453200690 is a wasteful number, since it uses less digits than its factorization.

38453200690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251757.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 38453200690 in words is "thirty-eight billion, four hundred fifty-three million, two hundred thousand, six hundred ninety".