642585254474 has 8 divisors (see below), whose sum is σ = 963912205728. Its totient is φ = 321281185900.

The previous prime is 642585254449. The next prime is 642585254497. The reversal of 642585254474 is 474452585246.

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

It is a super-3 number, since 3×642585254474³ (a number of 36 digits) contains 333 as substring.

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, 5650292 + ... + 5762895.

It is an arithmetic number, because the mean of its divisors is an integer number (120489025716).

Almost surely, 2^642585254474 is an apocalyptic number.

642585254474 is a deficient number, since it is larger than the sum of its proper divisors (321326951254).

642585254474 is a wasteful number, since it uses less digits than its factorization.

642585254474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11441340.

The product of its digits is 43008000, while the sum is 56.

The spelling of 642585254474 in words is "six hundred forty-two billion, five hundred eighty-five million, two hundred fifty-four thousand, four hundred seventy-four".