977540529957790 has 32 divisors (see below), whose sum is σ = 1803569350343040. Its totient is φ = 381250663392000.

The previous prime is 977540529957787. The next prime is 977540529957811. The reversal of 977540529957790 is 97759925045779.

It is a junction number, because it is equal to n+sod(n) for n = 977540529957698 and 977540529957707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713589286 + ... + 714957865.

It is an arithmetic number, because the mean of its divisors is an integer number (56361542198220).

Almost surely, 2^{977540529957790} is an apocalyptic number.

977540529957790 is a deficient number, since it is larger than the sum of its proper divisors (826028820385250).

977540529957790 is a wasteful number, since it uses less digits than its factorization.

977540529957790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428548868.

The product of its (nonzero) digits is 15752961000, while the sum is 85.

The spelling of 977540529957790 in words is "nine hundred seventy-seven trillion, five hundred forty billion, five hundred twenty-nine million, nine hundred fifty-seven thousand, seven hundred ninety".