23767473691 has 6 divisors (see below), whose sum is σ = 25736377020. Its totient is φ = 21939206328.

The previous prime is 23767473689. The next prime is 23767473701. The reversal of 23767473691 is 19637476732.

It is not a de Polignac number, because 23767473691 - 2¹ = 23767473689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23767470691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70317801 + ... + 70318138.

It is an arithmetic number, because the mean of its divisors is an integer number (4289396170).

Almost surely, 2^23767473691 is an apocalyptic number.

23767473691 is a deficient number, since it is larger than the sum of its proper divisors (1968903329).

23767473691 is a wasteful number, since it uses less digits than its factorization.

23767473691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140635965 (or 140635952 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 55.

The spelling of 23767473691 in words is "twenty-three billion, seven hundred sixty-seven million, four hundred seventy-three thousand, six hundred ninety-one".