64727420422700 has 72 divisors (see below), whose sum is σ = 161284780280064. Its totient is φ = 22087081800000.

The previous prime is 64727420422699. The next prime is 64727420422727. The reversal of 64727420422700 is 722402472746.

It is a super-2 number, since 2×64727420422700² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218970176 + ... + 219265575.

Almost surely, 2^{64727420422700} is an apocalyptic number.

It is an amenable number.

64727420422700 is an abundant number, since it is smaller than the sum of its proper divisors (96557359857364).

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

64727420422700 is a wasteful number, since it uses less digits than its factorization.

64727420422700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438235983 (or 438235976 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 47.

The spelling of 64727420422700 in words is "sixty-four trillion, seven hundred twenty-seven billion, four hundred twenty million, four hundred twenty-two thousand, seven hundred".