872994819420885 has 64 divisors (see below), whose sum is σ = 1608229003530240. Its totient is φ = 396110909767680.

The previous prime is 872994819420761. The next prime is 872994819420923. The reversal of 872994819420885 is 588024918499278.

It is not a de Polignac number, because 872994819420885 - 2⁸ = 872994819420629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 872994819420798 and 872994819420807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49434069 + ... + 64728021.

It is an arithmetic number, because the mean of its divisors is an integer number (25128578180160).

Almost surely, 2^{872994819420885} is an apocalyptic number.

It is an amenable number.

872994819420885 is a deficient number, since it is larger than the sum of its proper divisors (735234184109355).

872994819420885 is a wasteful number, since it uses less digits than its factorization.

872994819420885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298018.

The product of its (nonzero) digits is 6688604160, while the sum is 84.

The spelling of 872994819420885 in words is "eight hundred seventy-two trillion, nine hundred ninety-four billion, eight hundred nineteen million, four hundred twenty thousand, eight hundred eighty-five".