77092308540 has 72 divisors (see below), whose sum is σ = 251834882208. Its totient is φ = 18976567680.

The previous prime is 77092308529. The next prime is 77092308589. The reversal of 77092308540 is 4580329077.

77092308540 is a `hidden beast` number, since 7 + 70 + 9 + 2 + 30 + 8 + 540 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16470376 + ... + 16475055.

Almost surely, 2^77092308540 is an apocalyptic number.

It is an amenable number.

77092308540 is an abundant number, since it is smaller than the sum of its proper divisors (174742573668).

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

77092308540 is a wasteful number, since it uses less digits than its factorization.

77092308540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32945459 (or 32945454 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 77092308540 in words is "seventy-seven billion, ninety-two million, three hundred eight thousand, five hundred forty".