80898779798 has 32 divisors (see below), whose sum is σ = 128133439488. Its totient is φ = 38250122400.

The previous prime is 80898779789. The next prime is 80898779807. The reversal of 80898779798 is 89797789808.

It is an interprime number because it is at equal distance from previous prime (80898779789) and next prime (80898779807).

It is a super-2 number, since 2×80898779798² (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 15 ways as a sum of consecutive naturals, for example, 1816736 + ... + 1860732.

It is an arithmetic number, because the mean of its divisors is an integer number (4004169984).

Almost surely, 2^80898779798 is an apocalyptic number.

80898779798 is a deficient number, since it is larger than the sum of its proper divisors (47234659690).

80898779798 is a wasteful number, since it uses less digits than its factorization.

80898779798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44708.

The product of its (nonzero) digits is 1024192512, while the sum is 80.

The spelling of 80898779798 in words is "eighty billion, eight hundred ninety-eight million, seven hundred seventy-nine thousand, seven hundred ninety-eight".