80245637496981 has 48 divisors (see below), whose sum is σ = 126883360880640. Its totient is φ = 48466392041760.

The previous prime is 80245637496971. The next prime is 80245637497009. The reversal of 80245637496981 is 18969473654208.

80245637496981 is a `hidden beast` number, since 8 + 0 + 2 + 4 + 56 + 3 + 7 + 496 + 9 + 81 = 666.

80245637496981 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 80245637496981 - 2¹⁰ = 80245637495957 is a prime.

It is a super-2 number, since 2×80245637496981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80245637496971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38261116 + ... + 40303898.

It is an arithmetic number, because the mean of its divisors is an integer number (2643403351680).

It is a 1-persistent number, because it is pandigital, but 2⋅80245637496981 = 160491274993962 is not.

Almost surely, 2^{80245637496981} is an apocalyptic number.

It is an amenable number.

80245637496981 is a deficient number, since it is larger than the sum of its proper divisors (46637723383659).

80245637496981 is a wasteful number, since it uses less digits than its factorization.

80245637496981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044166 (or 2044163 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 80245637496981 in words is "eighty trillion, two hundred forty-five billion, six hundred thirty-seven million, four hundred ninety-six thousand, nine hundred eighty-one".