877421961552 has 40 divisors (see below), whose sum is σ = 2266776201760. Its totient is φ = 292460722560.

The previous prime is 877421961499. The next prime is 877421961569. The reversal of 877421961552 is 255169124778.

It is a super-2 number, since 2×877421961552² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 877421961492 and 877421961501.

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, 684927 + ... + 1491297.

It is an arithmetic number, because the mean of its divisors is an integer number (56669405044).

Almost surely, 2^877421961552 is an apocalyptic number.

It is an amenable number.

877421961552 is an abundant number, since it is smaller than the sum of its proper divisors (1389354240208).

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

877421961552 is a wasteful number, since it uses less digits than its factorization.

877421961552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829051 (or 829045 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 57.

The spelling of 877421961552 in words is "eight hundred seventy-seven billion, four hundred twenty-one million, nine hundred sixty-one thousand, five hundred fifty-two".