77399980236634 has 24 divisors (see below), whose sum is σ = 132014500358580. Its totient is φ = 33968643360960.

The previous prime is 77399980236619. The next prime is 77399980236659. The reversal of 77399980236634 is 43663208999377.

It can be written as a sum of positive squares in 2 ways, for example, as 75878820614025 + 1521159622609 = 8710845^2 + 1233353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5514383139 + ... + 5514397174.

Almost surely, 2^{77399980236634} is an apocalyptic number.

77399980236634 is a deficient number, since it is larger than the sum of its proper divisors (54614520121946).

77399980236634 is a wasteful number, since it uses less digits than its factorization.

77399980236634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028780366 (or 11028780355 counting only the distinct ones).

The product of its (nonzero) digits is 2222131968, while the sum is 76.

The spelling of 77399980236634 in words is "seventy-seven trillion, three hundred ninety-nine billion, nine hundred eighty million, two hundred thirty-six thousand, six hundred thirty-four".