64120118786 has 16 divisors (see below), whose sum is σ = 103152528000. Its totient is φ = 29799617328.

The previous prime is 64120118759. The next prime is 64120118789. The reversal of 64120118786 is 68781102146.

It is a super-2 number, since 2×64120118786² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120118789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15916586 + ... + 15920613.

It is an arithmetic number, because the mean of its divisors is an integer number (6447033000).

Almost surely, 2^64120118786 is an apocalyptic number.

64120118786 is a deficient number, since it is larger than the sum of its proper divisors (39032409214).

64120118786 is a wasteful number, since it uses less digits than its factorization.

64120118786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31837273.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 64120118786 in words is "sixty-four billion, one hundred twenty million, one hundred eighteen thousand, seven hundred eighty-six".