77200481974872 has 128 divisors (see below), whose sum is σ = 195153561999360. Its totient is φ = 25447163635200.

The previous prime is 77200481974849. The next prime is 77200481974897. The reversal of 77200481974872 is 27847918400277.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10652746753 + ... + 10652753999.

It is an arithmetic number, because the mean of its divisors is an integer number (1524637203120).

Almost surely, 2^{77200481974872} is an apocalyptic number.

It is an amenable number.

77200481974872 is an abundant number, since it is smaller than the sum of its proper divisors (117953080024488).

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

77200481974872 is a wasteful number, since it uses less digits than its factorization.

77200481974872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193 (or 12189 counting only the distinct ones).

The product of its (nonzero) digits is 88510464, while the sum is 66.

The spelling of 77200481974872 in words is "seventy-seven trillion, two hundred billion, four hundred eighty-one million, nine hundred seventy-four thousand, eight hundred seventy-two".