76277487887 has 4 divisors (see below), whose sum is σ = 78907746120. Its totient is φ = 73647229656.

The previous prime is 76277487883. The next prime is 76277487889. The reversal of 76277487887 is 78878477267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78878477267 = 1229 ⋅64181023.

It is a cyclic number.

It is not a de Polignac number, because 76277487887 - 2² = 76277487883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76277487887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76277487883) 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, 1315129073 + ... + 1315129130.

It is an arithmetic number, because the mean of its divisors is an integer number (19726936530).

Almost surely, 2^76277487887 is an apocalyptic number.

76277487887 is a deficient number, since it is larger than the sum of its proper divisors (2630258233).

76277487887 is a wasteful number, since it uses less digits than its factorization.

76277487887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630258232.

The product of its digits is 413048832, while the sum is 71.

The spelling of 76277487887 in words is "seventy-six billion, two hundred seventy-seven million, four hundred eighty-seven thousand, eight hundred eighty-seven".