80461572669 has 24 divisors (see below), whose sum is σ = 120660015840. Its totient is φ = 53581760496.

The previous prime is 80461572643. The next prime is 80461572691. The reversal of 80461572669 is 96627516408.

80461572669 is a `hidden beast` number, since 8 + 0 + 4 + 6 + 1 + 572 + 6 + 69 = 666.

It is not a de Polignac number, because 80461572669 - 2⁸ = 80461572413 is a prime.

It is a super-2 number, since 2×80461572669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80461570669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37867 + ... + 402935.

It is an arithmetic number, because the mean of its divisors is an integer number (5027500660).

Almost surely, 2^80461572669 is an apocalyptic number.

It is an amenable number.

80461572669 is a deficient number, since it is larger than the sum of its proper divisors (40198443171).

80461572669 is an equidigital number, since it uses as much as digits as its factorization.

80461572669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365991 (or 365979 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 80461572669 in words is "eighty billion, four hundred sixty-one million, five hundred seventy-two thousand, six hundred sixty-nine".