1977952880824 has 16 divisors (see below), whose sum is σ = 3710516940000. Its totient is φ = 988481696832.

The previous prime is 1977952880753. The next prime is 1977952880833. The reversal of 1977952880824 is 4280882597791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61825957 + ... + 61857940.

It is an arithmetic number, because the mean of its divisors is an integer number (231907308750).

Almost surely, 2^{1977952880824} is an apocalyptic number.

It is an amenable number.

1977952880824 is a deficient number, since it is larger than the sum of its proper divisors (1732564059176).

1977952880824 is a wasteful number, since it uses less digits than its factorization.

1977952880824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123685902 (or 123685898 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 70.

The spelling of 1977952880824 in words is "one trillion, nine hundred seventy-seven billion, nine hundred fifty-two million, eight hundred eighty thousand, eight hundred twenty-four".