445429172790 has 80 divisors (see below), whose sum is σ = 1368810935712. Its totient is φ = 101812381056.

The previous prime is 445429172743. The next prime is 445429172809. The reversal of 445429172790 is 97271924544.

445429172790 is a `hidden beast` number, since 4 + 4 + 542 + 9 + 1 + 7 + 2 + 7 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39273799 + ... + 39285138.

Almost surely, 2^445429172790 is an apocalyptic number.

445429172790 is an abundant number, since it is smaller than the sum of its proper divisors (923381762922).

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

445429172790 is a wasteful number, since it uses less digits than its factorization.

445429172790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78558963 (or 78558954 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 445429172790 in words is "four hundred forty-five billion, four hundred twenty-nine million, one hundred seventy-two thousand, seven hundred ninety".