264412621690 has 64 divisors (see below), whose sum is σ = 563678818560. Its totient is φ = 87376020480.

The previous prime is 264412621673. The next prime is 264412621717. The reversal of 264412621690 is 96126214462.

It is a super-2 number, since 2×264412621690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045074 + ... + 1273186.

It is an arithmetic number, because the mean of its divisors is an integer number (8807481540).

Almost surely, 2^264412621690 is an apocalyptic number.

264412621690 is an abundant number, since it is smaller than the sum of its proper divisors (299266196870).

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

264412621690 is a wasteful number, since it uses less digits than its factorization.

264412621690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228727.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 264412621690 in words is "two hundred sixty-four billion, four hundred twelve million, six hundred twenty-one thousand, six hundred ninety".