64116772386 has 32 divisors (see below), whose sum is σ = 128649254400. Its totient is φ = 21303081600.

The previous prime is 64116772333. The next prime is 64116772387. The reversal of 64116772386 is 68327761146.

It is a happy number.

64116772386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64116772386² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64116772387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2457711 + ... + 2483661.

It is an arithmetic number, because the mean of its divisors is an integer number (4020289200).

Almost surely, 2^64116772386 is an apocalyptic number.

64116772386 is an abundant number, since it is smaller than the sum of its proper divisors (64532482014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64116772386 is a wasteful number, since it uses less digits than its factorization.

64116772386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27274.

The product of its digits is 2032128, while the sum is 51.

The spelling of 64116772386 in words is "sixty-four billion, one hundred sixteen million, seven hundred seventy-two thousand, three hundred eighty-six".