64191015541742 has 16 divisors (see below), whose sum is σ = 96796686338352. Its totient is φ = 31925525479680.

The previous prime is 64191015541739. The next prime is 64191015541787. The reversal of 64191015541742 is 24714551019146.

It is a congruent number.

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, 16228259 + ... + 19792382.

It is an arithmetic number, because the mean of its divisors is an integer number (6049792896147).

Almost surely, 2^{64191015541742} is an apocalyptic number.

64191015541742 is a deficient number, since it is larger than the sum of its proper divisors (32605670796610).

64191015541742 is a wasteful number, since it uses less digits than its factorization.

64191015541742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36025363.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 64191015541742 in words is "sixty-four trillion, one hundred ninety-one billion, fifteen million, five hundred forty-one thousand, seven hundred forty-two".