64420272600 has 96 divisors (see below), whose sum is σ = 211450104720. Its totient is φ = 16168222720.

The previous prime is 64420272599. The next prime is 64420272643. The reversal of 64420272600 is 627202446.

It is a congruent number.

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, 3147657 + ... + 3168056.

Almost surely, 2^64420272600 is an apocalyptic number.

64420272600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64420272600 is an abundant number, since it is smaller than the sum of its proper divisors (147029832120).

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

64420272600 is a wasteful number, since it uses less digits than its factorization.

64420272600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315749 (or 6315740 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 64420272600 in words is "sixty-four billion, four hundred twenty million, two hundred seventy-two thousand, six hundred".