42997398531 has 8 divisors (see below), whose sum is σ = 57377604624. Its totient is φ = 28641062400.

The previous prime is 42997398497. The next prime is 42997398557. The reversal of 42997398531 is 13589379924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42997398531 - 2⁷ = 42997398403 is a prime.

It is a super-3 number, since 3×42997398531³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (42997398331) 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 in 7 ways as a sum of consecutive naturals, for example, 5963286 + ... + 5970491.

It is an arithmetic number, because the mean of its divisors is an integer number (7172200578).

Almost surely, 2^42997398531 is an apocalyptic number.

42997398531 is a deficient number, since it is larger than the sum of its proper divisors (14380206093).

42997398531 is a wasteful number, since it uses less digits than its factorization.

42997398531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11934981.

The product of its digits is 14696640, while the sum is 60.

The spelling of 42997398531 in words is "forty-two billion, nine hundred ninety-seven million, three hundred ninety-eight thousand, five hundred thirty-one".