38654943731 has 2 divisors, whose sum is σ = 38654943732. Its totient is φ = 38654943730.

The previous prime is 38654943727. The next prime is 38654943751. The reversal of 38654943731 is 13734945683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38654943731 - 2² = 38654943727 is a prime.

It is a super-2 number, since 2×38654943731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38654943751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19327471865 + 19327471866.

It is an arithmetic number, because the mean of its divisors is an integer number (19327471866).

Almost surely, 2^38654943731 is an apocalyptic number.

38654943731 is a deficient number, since it is larger than the sum of its proper divisors (1).

38654943731 is an equidigital number, since it uses as much as digits as its factorization.

38654943731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 53.

The spelling of 38654943731 in words is "thirty-eight billion, six hundred fifty-four million, nine hundred forty-three thousand, seven hundred thirty-one".