878498453990 has 16 divisors (see below), whose sum is σ = 1581416021952. Its totient is φ = 351372980544.

The previous prime is 878498453971. The next prime is 878498453993. The reversal of 878498453990 is 99354894878.

878498453990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878498453993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3160094 + ... + 3426833.

It is an arithmetic number, because the mean of its divisors is an integer number (98838501372).

Almost surely, 2^878498453990 is an apocalyptic number.

878498453990 is a deficient number, since it is larger than the sum of its proper divisors (702917567962).

878498453990 is a wasteful number, since it uses less digits than its factorization.

878498453990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600271.

The product of its (nonzero) digits is 627056640, while the sum is 74.

The spelling of 878498453990 in words is "eight hundred seventy-eight billion, four hundred ninety-eight million, four hundred fifty-three thousand, nine hundred ninety".