64194319408002 has 32 divisors (see below), whose sum is σ = 146739465216000. Its totient is φ = 18340035081168.

The previous prime is 64194319407991. The next prime is 64194319408027. The reversal of 64194319408002 is 20080491349146.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49309602 + ... + 50594717.

It is an arithmetic number, because the mean of its divisors is an integer number (4585608288000).

Almost surely, 2^{64194319408002} is an apocalyptic number.

64194319408002 is an abundant number, since it is smaller than the sum of its proper divisors (82545145807998).

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

64194319408002 is a wasteful number, since it uses less digits than its factorization.

64194319408002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99919630.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 64194319408002 in words is "sixty-four trillion, one hundred ninety-four billion, three hundred nineteen million, four hundred eight thousand, two".