23490138267 has 40 divisors (see below), whose sum is σ = 35381058240. Its totient is φ = 15530849280.

The previous prime is 23490138251. The next prime is 23490138271. The reversal of 23490138267 is 76283109432.

23490138267 is a `hidden beast` number, since 2 + 3 + 490 + 138 + 26 + 7 = 666.

It is not a de Polignac number, because 23490138267 - 2⁴ = 23490138251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23490138227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5024443 + ... + 5029115.

It is an arithmetic number, because the mean of its divisors is an integer number (884526456).

Almost surely, 2^23490138267 is an apocalyptic number.

23490138267 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23490138267 is a deficient number, since it is larger than the sum of its proper divisors (11890919973).

23490138267 is a wasteful number, since it uses less digits than its factorization.

23490138267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 23490138267 in words is "twenty-three billion, four hundred ninety million, one hundred thirty-eight thousand, two hundred sixty-seven".