742578432398 has 24 divisors (see below), whose sum is σ = 1224458318160. Its totient is φ = 337501340000.

The previous prime is 742578432371. The next prime is 742578432457. The reversal of 742578432398 is 893234875247.

It is a self number, because there is not a number n which added to its sum of digits gives 742578432398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2310023 + ... + 2611773.

It is an arithmetic number, because the mean of its divisors is an integer number (51019096590).

Almost surely, 2^742578432398 is an apocalyptic number.

742578432398 is a deficient number, since it is larger than the sum of its proper divisors (481879885762).

742578432398 is a wasteful number, since it uses less digits than its factorization.

742578432398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311944 (or 311933 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 62.

The spelling of 742578432398 in words is "seven hundred forty-two billion, five hundred seventy-eight million, four hundred thirty-two thousand, three hundred ninety-eight".