76677757061 has 4 divisors (see below), whose sum is σ = 76802032812. Its totient is φ = 76553481312.

The previous prime is 76677757027. The next prime is 76677757087. The reversal of 76677757061 is 16075777667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16075777667 = 1861 ⋅8638247.

It can be written as a sum of positive squares in 2 ways, for example, as 1878789025 + 74798968036 = 43345^2 + 273494^2 .

It is a cyclic number.

It is not a de Polignac number, because 76677757061 - 2⁶ = 76677756997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76677757561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62136950 + ... + 62138183.

It is an arithmetic number, because the mean of its divisors is an integer number (19200508203).

Almost surely, 2^76677757061 is an apocalyptic number.

It is an amenable number.

76677757061 is a deficient number, since it is larger than the sum of its proper divisors (124275751).

76677757061 is a wasteful number, since it uses less digits than its factorization.

76677757061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124275750.

The product of its (nonzero) digits is 18151560, while the sum is 59.

The spelling of 76677757061 in words is "seventy-six billion, six hundred seventy-seven million, seven hundred fifty-seven thousand, sixty-one".