23494815545 has 12 divisors (see below), whose sum is σ = 28596497700. Its totient is φ = 18531102240.

The previous prime is 23494815517. The next prime is 23494815551. The reversal of 23494815545 is 54551849432.

It can be written as a sum of positive squares in 2 ways, for example, as 5923457296 + 17571358249 = 76964^2 + 132557^2 .

It is not a de Polignac number, because 23494815545 - 2³² = 19199848249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23494815493 and 23494815502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440870 + ... + 491279.

It is an arithmetic number, because the mean of its divisors is an integer number (2383041475).

Almost surely, 2^23494815545 is an apocalyptic number.

It is an amenable number.

23494815545 is a deficient number, since it is larger than the sum of its proper divisors (5101682155).

23494815545 is an frugal number, since it uses more digits than its factorization.

23494815545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932296 (or 932225 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 50.

The spelling of 23494815545 in words is "twenty-three billion, four hundred ninety-four million, eight hundred fifteen thousand, five hundred forty-five".