39457024997 has 16 divisors (see below), whose sum is σ = 43892968560. Its totient is φ = 35232579072.

The previous prime is 39457024991. The next prime is 39457025009. The reversal of 39457024997 is 79942075493.

It can be written as a sum of positive squares in 8 ways, for example, as 518290756 + 38938734241 = 22766^2 + 197329^2 .

It is a cyclic number.

It is not a de Polignac number, because 39457024997 - 2²⁶ = 39389916133 is a prime.

It is a super-2 number, since 2×39457024997² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39457024991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153872 + ... + 320297.

It is an arithmetic number, because the mean of its divisors is an integer number (2743310535).

Almost surely, 2^39457024997 is an apocalyptic number.

39457024997 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

39457024997 is a deficient number, since it is larger than the sum of its proper divisors (4435943563).

39457024997 is a wasteful number, since it uses less digits than its factorization.

39457024997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474392.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 39457024997 in words is "thirty-nine billion, four hundred fifty-seven million, twenty-four thousand, nine hundred ninety-seven".