38699174321 has 2 divisors, whose sum is σ = 38699174322. Its totient is φ = 38699174320.

The previous prime is 38699174281. The next prime is 38699174329. The reversal of 38699174321 is 12347199683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37672869025 + 1026305296 = 194095^2 + 32036^2 .

It is a cyclic number.

It is not a de Polignac number, because 38699174321 - 2⁶ = 38699174257 is a prime.

It is a super-2 number, since 2×38699174321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38699174329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19349587160 + 19349587161.

It is an arithmetic number, because the mean of its divisors is an integer number (19349587161).

Almost surely, 2^38699174321 is an apocalyptic number.

It is an amenable number.

38699174321 is a deficient number, since it is larger than the sum of its proper divisors (1).

38699174321 is an equidigital number, since it uses as much as digits as its factorization.

38699174321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The spelling of 38699174321 in words is "thirty-eight billion, six hundred ninety-nine million, one hundred seventy-four thousand, three hundred twenty-one".