77546244042 has 48 divisors (see below), whose sum is σ = 172225377792. Its totient is φ = 25205346720.

The previous prime is 77546244037. The next prime is 77546244053. The reversal of 77546244042 is 24044264577.

77546244042 is a `hidden beast` number, since 7 + 7 + 546 + 24 + 40 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60148 + ... + 398384.

It is an arithmetic number, because the mean of its divisors is an integer number (3588028704).

Almost surely, 2^77546244042 is an apocalyptic number.

77546244042 is an abundant number, since it is smaller than the sum of its proper divisors (94679133750).

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

77546244042 is a wasteful number, since it uses less digits than its factorization.

77546244042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338563 (or 338560 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 45.

The spelling of 77546244042 in words is "seventy-seven billion, five hundred forty-six million, two hundred forty-four thousand, forty-two".