731920531942 has 8 divisors (see below), whose sum is σ = 1097885287296. Its totient is φ = 365958769512.

The previous prime is 731920531919. The next prime is 731920531981. The reversal of 731920531942 is 249135029137.

It is a happy number.

731920531942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 731920531892 and 731920531901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21528 + ... + 1210084.

It is an arithmetic number, because the mean of its divisors is an integer number (137235660912).

Almost surely, 2^731920531942 is an apocalyptic number.

731920531942 is a deficient number, since it is larger than the sum of its proper divisors (365964755354).

731920531942 is a wasteful number, since it uses less digits than its factorization.

731920531942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496462.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 731920531942 in words is "seven hundred thirty-one billion, nine hundred twenty million, five hundred thirty-one thousand, nine hundred forty-two".