577777142972 has 24 divisors (see below), whose sum is σ = 1026825705360. Its totient is φ = 284430329600.

The previous prime is 577777142963. The next prime is 577777142993. The reversal of 577777142972 is 279241777775.

It is a junction number, because it is equal to n+sod(n) for n = 577777142899 and 577777142908.

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, 3922493 + ... + 4067124.

It is an arithmetic number, because the mean of its divisors is an integer number (42784404390).

Almost surely, 2^577777142972 is an apocalyptic number.

It is an amenable number.

577777142972 is a deficient number, since it is larger than the sum of its proper divisors (449048562388).

577777142972 is a wasteful number, since it uses less digits than its factorization.

577777142972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989901 (or 7989899 counting only the distinct ones).

The product of its digits is 84707280, while the sum is 65.

The spelling of 577777142972 in words is "five hundred seventy-seven billion, seven hundred seventy-seven million, one hundred forty-two thousand, nine hundred seventy-two".