64118989693484 has 24 divisors (see below), whose sum is σ = 122436140449728. Its totient is φ = 29138528618640.

The previous prime is 64118989693459. The next prime is 64118989693529. The reversal of 64118989693484 is 48439698981146.

It is a happy number.

It is a super-2 number, since 2×64118989693484² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64118989693399 and 64118989693408.

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, 161466854 + ... + 161863469.

It is an arithmetic number, because the mean of its divisors is an integer number (5101505852072).

Almost surely, 2^{64118989693484} is an apocalyptic number.

It is an amenable number.

64118989693484 is a deficient number, since it is larger than the sum of its proper divisors (58317150756244).

64118989693484 is a wasteful number, since it uses less digits than its factorization.

64118989693484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323334845 (or 323334843 counting only the distinct ones).

The product of its digits is 2579890176, while the sum is 80.

The spelling of 64118989693484 in words is "sixty-four trillion, one hundred eighteen billion, nine hundred eighty-nine million, six hundred ninety-three thousand, four hundred eighty-four".