80977988977908 has 96 divisors (see below), whose sum is σ = 208188003703680. Its totient is φ = 24293332800000.

The previous prime is 80977988977903. The next prime is 80977988977909.

80977988977908 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80977988977901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131693398 + ... + 132306866.

It is an arithmetic number, because the mean of its divisors is an integer number (2168625038580).

Almost surely, 2^{80977988977908} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80977988977908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104094001851840).

80977988977908 is an abundant number, since it is smaller than the sum of its proper divisors (127210014725772).

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

80977988977908 is a wasteful number, since it uses less digits than its factorization.

80977988977908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623489 (or 623487 counting only the distinct ones).

The product of its (nonzero) digits is 64524128256, while the sum is 96.

The spelling of 80977988977908 in words is "eighty trillion, nine hundred seventy-seven billion, nine hundred eighty-eight million, nine hundred seventy-seven thousand, nine hundred eight".