7977364212 has 12 divisors (see below), whose sum is σ = 18613849856. Its totient is φ = 2659121400.

The previous prime is 7977364163. The next prime is 7977364231. The reversal of 7977364212 is 2124637797.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332390164 + ... + 332390187.

Almost surely, 2^7977364212 is an apocalyptic number.

It is an amenable number.

7977364212 is an abundant number, since it is smaller than the sum of its proper divisors (10636485644).

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

7977364212 is a wasteful number, since it uses less digits than its factorization.

7977364212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664780358 (or 664780356 counting only the distinct ones).

The product of its digits is 889056, while the sum is 48.

The square root of 7977364212 is about 89316.0915624951. The cubic root of 7977364212 is about 1998.1119024380. Note that the first 3 decimals are identical.

The spelling of 7977364212 in words is "seven billion, nine hundred seventy-seven million, three hundred sixty-four thousand, two hundred twelve".