472455520621658 has 24 divisors (see below), whose sum is σ = 828571377699252. Its totient is φ = 201453115383744.

The previous prime is 472455520621631. The next prime is 472455520621687. The reversal of 472455520621658 is 856126025554274.

It can be written as a sum of positive squares in 2 ways, for example, as 407159472745249 + 65296047876409 = 20178193^2 + 8080597^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 472455520621658.

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, 12235957091 + ... + 12235995702.

Almost surely, 2^{472455520621658} is an apocalyptic number.

472455520621658 is a deficient number, since it is larger than the sum of its proper divisors (356115857077594).

472455520621658 is a wasteful number, since it uses less digits than its factorization.

472455520621658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24471953006 (or 24471952999 counting only the distinct ones).

The product of its (nonzero) digits is 161280000, while the sum is 62.

The spelling of 472455520621658 in words is "four hundred seventy-two trillion, four hundred fifty-five billion, five hundred twenty million, six hundred twenty-one thousand, six hundred fifty-eight".