878766820005372 has 48 divisors (see below), whose sum is σ = 2053159799040000. Its totient is φ = 292536112397248.

The previous prime is 878766820005329. The next prime is 878766820005409. The reversal of 878766820005372 is 273500028667878.

It is a super-2 number, since 2×878766820005372² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878766820005297 and 878766820005306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58085254 + ... + 71634002.

It is an arithmetic number, because the mean of its divisors is an integer number (42774162480000).

Almost surely, 2^{878766820005372} is an apocalyptic number.

It is an amenable number.

878766820005372 is an abundant number, since it is smaller than the sum of its proper divisors (1174392979034628).

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

878766820005372 is a wasteful number, since it uses less digits than its factorization.

878766820005372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13555882 (or 13555880 counting only the distinct ones).

The product of its (nonzero) digits is 379330560, while the sum is 69.

The spelling of 878766820005372 in words is "eight hundred seventy-eight trillion, seven hundred sixty-six billion, eight hundred twenty million, five thousand, three hundred seventy-two".