77242876551 has 12 divisors (see below), whose sum is σ = 116424046128. Its totient is φ = 49256326944.

The previous prime is 77242876481. The next prime is 77242876577. The reversal of 77242876551 is 15567824277.

77242876551 is a `hidden beast` number, since 7 + 7 + 2 + 4 + 2 + 87 + 6 + 551 = 666.

It is not a de Polignac number, because 77242876551 - 2¹⁷ = 77242745479 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77242876751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186576790 + ... + 186577203.

It is an arithmetic number, because the mean of its divisors is an integer number (9702003844).

Almost surely, 2^77242876551 is an apocalyptic number.

77242876551 is a deficient number, since it is larger than the sum of its proper divisors (39181169577).

77242876551 is a wasteful number, since it uses less digits than its factorization.

77242876551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373154022 (or 373154019 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 54.

The spelling of 77242876551 in words is "seventy-seven billion, two hundred forty-two million, eight hundred seventy-six thousand, five hundred fifty-one".