80561975952 has 40 divisors (see below), whose sum is σ = 208131445600. Its totient is φ = 26852313600.

The previous prime is 80561975947. The next prime is 80561975957. The reversal of 80561975952 is 25957916508.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80561975947) and next prime (80561975957).

It is a junction number, because it is equal to n+sod(n) for n = 80561975892 and 80561975901.

It is not an unprimeable number, because it can be changed into a prime (80561975957) 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, 902952 + ... + 988152.

It is an arithmetic number, because the mean of its divisors is an integer number (5203286140).

Almost surely, 2^80561975952 is an apocalyptic number.

It is an amenable number.

80561975952 is an abundant number, since it is smaller than the sum of its proper divisors (127569469648).

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

80561975952 is a wasteful number, since it uses less digits than its factorization.

80561975952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104911 (or 104905 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 57.

The spelling of 80561975952 in words is "eighty billion, five hundred sixty-one million, nine hundred seventy-five thousand, nine hundred fifty-two".