64794111900 has 144 divisors (see below), whose sum is σ = 223568024064. Its totient is φ = 14166155520.

The previous prime is 64794111883. The next prime is 64794111901. The reversal of 64794111900 is 911149746.

It is a super-2 number, since 2×64794111900² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64794111901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 622447 + ... + 719046.

Almost surely, 2^64794111900 is an apocalyptic number.

64794111900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64794111900 is an abundant number, since it is smaller than the sum of its proper divisors (158773912164).

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

64794111900 is a wasteful number, since it uses less digits than its factorization.

64794111900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341540 (or 1341533 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 64794111900 in words is "sixty-four billion, seven hundred ninety-four million, one hundred eleven thousand, nine hundred".