77901360142 has 16 divisors (see below), whose sum is σ = 124148489760. Its totient is φ = 36591131808.

The previous prime is 77901360137. The next prime is 77901360161. The reversal of 77901360142 is 24106310977.

It is a junction number, because it is equal to n+sod(n) for n = 77901360095 and 77901360104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18148218 + ... + 18152509.

It is an arithmetic number, because the mean of its divisors is an integer number (7759280610).

Almost surely, 2^77901360142 is an apocalyptic number.

77901360142 is a deficient number, since it is larger than the sum of its proper divisors (46247129618).

77901360142 is a wasteful number, since it uses less digits than its factorization.

77901360142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36300795.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 77901360142 in words is "seventy-seven billion, nine hundred one million, three hundred sixty thousand, one hundred forty-two".