77494577542375 has 128 divisors (see below), whose sum is σ = 114885532629504. Its totient is φ = 51084214272000.

The previous prime is 77494577542363. The next prime is 77494577542379. The reversal of 77494577542375 is 57324577549477.

It is not a de Polignac number, because 77494577542375 - 2¹¹ = 77494577540327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77494577542379) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2862416839 + ... + 2862443911.

It is an arithmetic number, because the mean of its divisors is an integer number (897543223668).

Almost surely, 2^{77494577542375} is an apocalyptic number.

77494577542375 is a deficient number, since it is larger than the sum of its proper divisors (37390955087129).

77494577542375 is a wasteful number, since it uses less digits than its factorization.

77494577542375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28302 (or 28292 counting only the distinct ones).

The product of its digits is 7260624000, while the sum is 76.

The spelling of 77494577542375 in words is "seventy-seven trillion, four hundred ninety-four billion, five hundred seventy-seven million, five hundred forty-two thousand, three hundred seventy-five".