64475501473135 has 16 divisors (see below), whose sum is σ = 80736753129984. Its totient is φ = 49336423168032.

The previous prime is 64475501473129. The next prime is 64475501473171. The reversal of 64475501473135 is 53137410557446.

It is a cyclic number.

It is not a de Polignac number, because 64475501473135 - 2⁷ = 64475501473007 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3455757 + ... + 11869846.

It is an arithmetic number, because the mean of its divisors is an integer number (5046047070624).

Almost surely, 2^{64475501473135} is an apocalyptic number.

64475501473135 is a deficient number, since it is larger than the sum of its proper divisors (16261251656849).

64475501473135 is a wasteful number, since it uses less digits than its factorization.

64475501473135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362214.

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 64475501473135 in words is "sixty-four trillion, four hundred seventy-five billion, five hundred one million, four hundred seventy-three thousand, one hundred thirty-five".