64442627470 has 32 divisors (see below), whose sum is σ = 124992074592. Its totient is φ = 23780387712.

The previous prime is 64442627467. The next prime is 64442627471. The reversal of 64442627470 is 7472624446.

It is a self number, because there is not a number n which added to its sum of digits gives 64442627470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64442627471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82269 + ... + 368311.

It is an arithmetic number, because the mean of its divisors is an integer number (3906002331).

Almost surely, 2^64442627470 is an apocalyptic number.

64442627470 is a deficient number, since it is larger than the sum of its proper divisors (60549447122).

64442627470 is a wasteful number, since it uses less digits than its factorization.

64442627470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287796.

The product of its (nonzero) digits is 1806336, while the sum is 46.

The spelling of 64442627470 in words is "sixty-four billion, four hundred forty-two million, six hundred twenty-seven thousand, four hundred seventy".