23407342578 has 80 divisors (see below), whose sum is σ = 53004043224. Its totient is φ = 7720427520.

The previous prime is 23407342573. The next prime is 23407342579. The reversal of 23407342578 is 87524370432.

23407342578 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 73 + 4 + 2 + 578 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23334701049 + 72641529 = 152757^2 + 8523^2 .

It is not an unprimeable number, because it can be changed into a prime (23407342573) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6534748 + ... + 6538328.

Almost surely, 2^23407342578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23407342578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26502021612).

23407342578 is an abundant number, since it is smaller than the sum of its proper divisors (29596700646).

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

23407342578 is a wasteful number, since it uses less digits than its factorization.

23407342578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 23407342578 in words is "twenty-three billion, four hundred seven million, three hundred forty-two thousand, five hundred seventy-eight".