64153362638 has 32 divisors (see below), whose sum is σ = 104334104160. Its totient is φ = 29466823680.

The previous prime is 64153362617. The next prime is 64153362671. The reversal of 64153362638 is 83626335146.

It is a junction number, because it is equal to n+sod(n) for n = 64153362592 and 64153362601.

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, 2150408 + ... + 2180036.

It is an arithmetic number, because the mean of its divisors is an integer number (3260440755).

Almost surely, 2^64153362638 is an apocalyptic number.

64153362638 is a deficient number, since it is larger than the sum of its proper divisors (40180741522).

64153362638 is a wasteful number, since it uses less digits than its factorization.

64153362638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31172.

The product of its digits is 1866240, while the sum is 47.

The spelling of 64153362638 in words is "sixty-four billion, one hundred fifty-three million, three hundred sixty-two thousand, six hundred thirty-eight".