64547594942 has 16 divisors (see below), whose sum is σ = 99958292352. Its totient is φ = 31228448160.

The previous prime is 64547594939. The next prime is 64547594959. The reversal of 64547594942 is 24949574546.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413828 + ... + 548040.

It is an arithmetic number, because the mean of its divisors is an integer number (6247393272).

Almost surely, 2^64547594942 is an apocalyptic number.

64547594942 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

64547594942 is a deficient number, since it is larger than the sum of its proper divisors (35410697410).

64547594942 is a wasteful number, since it uses less digits than its factorization.

64547594942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142003.

The product of its digits is 43545600, while the sum is 59.

The spelling of 64547594942 in words is "sixty-four billion, five hundred forty-seven million, five hundred ninety-four thousand, nine hundred forty-two".