23387283157 has 8 divisors (see below), whose sum is σ = 27273800000. Its totient is φ = 20046242412.

The previous prime is 23387283119. The next prime is 23387283173. The reversal of 23387283157 is 75138278332.

It is not a de Polignac number, because 23387283157 - 2¹¹ = 23387281109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23387283157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23387283187) 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, 34091907 + ... + 34092592.

It is an arithmetic number, because the mean of its divisors is an integer number (3409225000).

Almost surely, 2^23387283157 is an apocalyptic number.

It is an amenable number.

23387283157 is a deficient number, since it is larger than the sum of its proper divisors (3886516843).

23387283157 is an frugal number, since it uses more digits than its factorization.

23387283157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68184520 (or 68184506 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The spelling of 23387283157 in words is "twenty-three billion, three hundred eighty-seven million, two hundred eighty-three thousand, one hundred fifty-seven".