23461091840 has 40 divisors (see below), whose sum is σ = 56251639620. Its totient is φ = 9384435712.

The previous prime is 23461091821. The next prime is 23461091851. The reversal of 23461091840 is 4819016432.

It can be written as a sum of positive squares in 2 ways, for example, as 22972858624 + 488233216 = 151568^2 + 22096^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 23461091794 and 23461091803.

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, 4579685 + ... + 4584804.

Almost surely, 2^23461091840 is an apocalyptic number.

23461091840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23461091840 is an abundant number, since it is smaller than the sum of its proper divisors (32790547780).

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

23461091840 is an frugal number, since it uses more digits than its factorization.

23461091840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9164512 (or 9164496 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 23461091840 in words is "twenty-three billion, four hundred sixty-one million, ninety-one thousand, eight hundred forty".