64420360192 has 52 divisors (see below), whose sum is σ = 132307060576. Its totient is φ = 31339560960.

The previous prime is 64420360189. The next prime is 64420360253. The reversal of 64420360192 is 29106302446.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 60984 + ... + 364087.

Almost surely, 2^64420360192 is an apocalyptic number.

It is an amenable number.

64420360192 is an abundant number, since it is smaller than the sum of its proper divisors (67886700384).

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

64420360192 is an equidigital number, since it uses as much as digits as its factorization.

64420360192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425132 (or 425110 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 64420360192 in words is "sixty-four billion, four hundred twenty million, three hundred sixty thousand, one hundred ninety-two".