38904697193769 has 27 divisors (see below), whose sum is σ = 61769125192957. Its totient is φ = 23578479612600.

The previous prime is 38904697193741. The next prime is 38904697193771. The reversal of 38904697193769 is 96739179640983.

The square root of 38904697193769 is 6237363.

It is a perfect power (a square), and thus also a powerful number.

38904697193769 is a `hidden beast` number, since 3 + 8 + 9 + 0 + 469 + 7 + 1 + 93 + 7 + 69 = 666.

It is not a de Polignac number, because 38904697193769 - 2²³ = 38904688805161 is a prime.

It is a super-2 number, since 2×38904697193769² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38904697193779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 205738474 + ... + 205927484.

Almost surely, 2^{38904697193769} is an apocalyptic number.

38904697193769 is the 6237363-rd square number.

38904697193769 is the 3118682-nd centered octagonal number.

It is an amenable number.

38904697193769 is a deficient number, since it is larger than the sum of its proper divisors (22864427999188).

38904697193769 is an frugal number, since it uses more digits than its factorization.

38904697193769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378050 (or 189025 counting only the distinct ones).

The product of its (nonzero) digits is 3333197952, while the sum is 81.

The spelling of 38904697193769 in words is "thirty-eight trillion, nine hundred four billion, six hundred ninety-seven million, one hundred ninety-three thousand, seven hundred sixty-nine".