23509021407 has 8 divisors (see below), whose sum is σ = 31366419120. Its totient is φ = 15662152320.

The previous prime is 23509021379. The next prime is 23509021433. The reversal of 23509021407 is 70412090532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23509021407 - 2¹⁵ = 23508988639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23509021807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626944 + ... + 2635877.

It is an arithmetic number, because the mean of its divisors is an integer number (3920802390).

Almost surely, 2^23509021407 is an apocalyptic number.

23509021407 is a deficient number, since it is larger than the sum of its proper divisors (7857397713).

23509021407 is a wasteful number, since it uses less digits than its factorization.

23509021407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264313.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 23509021407 in words is "twenty-three billion, five hundred nine million, twenty-one thousand, four hundred seven".