80669547387 has 24 divisors (see below), whose sum is σ = 136893779568. Its totient is φ = 45129816000.

The previous prime is 80669547379. The next prime is 80669547391. The reversal of 80669547387 is 78374596608.

80669547387 is a `hidden beast` number, since 8 + 0 + 6 + 6 + 9 + 547 + 3 + 87 = 666.

It is not a de Polignac number, because 80669547387 - 2³ = 80669547379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80669547307) 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, 31338864 + ... + 31341437.

It is an arithmetic number, because the mean of its divisors is an integer number (5703907482).

Almost surely, 2^80669547387 is an apocalyptic number.

80669547387 is a deficient number, since it is larger than the sum of its proper divisors (56224232181).

80669547387 is a wasteful number, since it uses less digits than its factorization.

80669547387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62680331 (or 62680328 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 80669547387 in words is "eighty billion, six hundred sixty-nine million, five hundred forty-seven thousand, three hundred eighty-seven".