39231157998 has 32 divisors (see below), whose sum is σ = 78910809120. Its totient is φ = 13002389120.

The previous prime is 39231157997. The next prime is 39231158011. The reversal of 39231157998 is 89975113293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39231157997) 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, 2010328 + ... + 2029748.

It is an arithmetic number, because the mean of its divisors is an integer number (2465962785).

Almost surely, 2^39231157998 is an apocalyptic number.

39231157998 is an abundant number, since it is smaller than the sum of its proper divisors (39679651122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39231157998 is a wasteful number, since it uses less digits than its factorization.

39231157998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332.

The product of its digits is 3674160, while the sum is 57.

The spelling of 39231157998 in words is "thirty-nine billion, two hundred thirty-one million, one hundred fifty-seven thousand, nine hundred ninety-eight".