23249135391 has 8 divisors (see below), whose sum is σ = 31012041984. Its totient is φ = 15492826200.

The previous prime is 23249135389. The next prime is 23249135423. The reversal of 23249135391 is 19353194232.

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

It is not a de Polignac number, because 23249135391 - 2¹ = 23249135389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23249135311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641121 + ... + 1655226.

It is an arithmetic number, because the mean of its divisors is an integer number (3876505248).

Almost surely, 2^23249135391 is an apocalyptic number.

23249135391 is a deficient number, since it is larger than the sum of its proper divisors (7762906593).

23249135391 is a wasteful number, since it uses less digits than its factorization.

23249135391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298701.

The product of its digits is 174960, while the sum is 42.

The spelling of 23249135391 in words is "twenty-three billion, two hundred forty-nine million, one hundred thirty-five thousand, three hundred ninety-one".