198880904870 has 16 divisors (see below), whose sum is σ = 361530042768. Its totient is φ = 78764714400.

The previous prime is 198880904863. The next prime is 198880904917. The reversal of 198880904870 is 78409088891.

It is a super-2 number, since 2×198880904870² (a number of 23 digits) contains 22 as substring.

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, 98454884 + ... + 98456903.

It is an arithmetic number, because the mean of its divisors is an integer number (22595627673).

Almost surely, 2^198880904870 is an apocalyptic number.

198880904870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198880904870 is a deficient number, since it is larger than the sum of its proper divisors (162649137898).

198880904870 is a wasteful number, since it uses less digits than its factorization.

198880904870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196911895.

The product of its (nonzero) digits is 9289728, while the sum is 62.

The spelling of 198880904870 in words is "one hundred ninety-eight billion, eight hundred eighty million, nine hundred four thousand, eight hundred seventy".