64779005874 has 16 divisors (see below), whose sum is σ = 141336012960. Its totient is φ = 19630001760.

The previous prime is 64779005849. The next prime is 64779005899. The reversal of 64779005874 is 47850097746.

64779005874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64779005849) and next prime (64779005899).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490749979 + ... + 490750110.

It is an arithmetic number, because the mean of its divisors is an integer number (8833500810).

Almost surely, 2^64779005874 is an apocalyptic number.

64779005874 is an abundant number, since it is smaller than the sum of its proper divisors (76557007086).

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

64779005874 is a wasteful number, since it uses less digits than its factorization.

64779005874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981500105.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 64779005874 in words is "sixty-four billion, seven hundred seventy-nine million, five thousand, eight hundred seventy-four".