64474077024 has 144 divisors (see below), whose sum is σ = 214651775520. Its totient is φ = 17971845120.

The previous prime is 64474077023. The next prime is 64474077029. The reversal of 64474077024 is 42077047446.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64474077023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307359 + ... + 472670.

It is an arithmetic number, because the mean of its divisors is an integer number (1490637330).

Almost surely, 2^64474077024 is an apocalyptic number.

It is an amenable number.

64474077024 is an abundant number, since it is smaller than the sum of its proper divisors (150177698496).

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

64474077024 is a wasteful number, since it uses less digits than its factorization.

64474077024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780093 (or 780082 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 45.

The spelling of 64474077024 in words is "sixty-four billion, four hundred seventy-four million, seventy-seven thousand, twenty-four".