872578207434 has 8 divisors (see below), whose sum is σ = 1745156414880. Its totient is φ = 290859402476.

The previous prime is 872578207427. The next prime is 872578207453. The reversal of 872578207434 is 434702875278.

It is a sphenic number, since it is the product of 3 distinct primes.

872578207434 is an admirable number.

It is a super-2 number, since 2×872578207434² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72714850614 + ... + 72714850625.

It is an arithmetic number, because the mean of its divisors is an integer number (218144551860).

Almost surely, 2^872578207434 is an apocalyptic number.

872578207434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

872578207434 is a wasteful number, since it uses less digits than its factorization.

872578207434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145429701244.

The product of its (nonzero) digits is 21073920, while the sum is 57.

The spelling of 872578207434 in words is "eight hundred seventy-two billion, five hundred seventy-eight million, two hundred seven thousand, four hundred thirty-four".