64256029542 has 16 divisors (see below), whose sum is σ = 142791176880. Its totient is φ = 21418676496.

The previous prime is 64256029517. The next prime is 64256029543. The reversal of 64256029542 is 24592065246.

64256029542 is a `hidden beast` number, since 6 + 4 + 25 + 60 + 29 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64256029543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594963183 + ... + 594963290.

It is an arithmetic number, because the mean of its divisors is an integer number (8924448555).

Almost surely, 2^64256029542 is an apocalyptic number.

64256029542 is an abundant number, since it is smaller than the sum of its proper divisors (78535147338).

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

64256029542 is a wasteful number, since it uses less digits than its factorization.

64256029542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189926484 (or 1189926478 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 64256029542 in words is "sixty-four billion, two hundred fifty-six million, twenty-nine thousand, five hundred forty-two".