23772137871 has 8 divisors (see below), whose sum is σ = 31696910640. Its totient is φ = 15847728512.

The previous prime is 23772137861. The next prime is 23772137903. The reversal of 23772137871 is 17873127732.

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

It is a cyclic number.

It is not a de Polignac number, because 23772137871 - 2¹¹ = 23772135823 is a prime.

It is a super-2 number, since 2×23772137871² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23772137871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23772137861) 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 7 ways as a sum of consecutive naturals, for example, 163561 + ... + 272573.

It is an arithmetic number, because the mean of its divisors is an integer number (3962113830).

Almost surely, 2^23772137871 is an apocalyptic number.

23772137871 is a deficient number, since it is larger than the sum of its proper divisors (7924772769).

23772137871 is a wasteful number, since it uses less digits than its factorization.

23772137871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181705.

The product of its digits is 691488, while the sum is 48.

The spelling of 23772137871 in words is "twenty-three billion, seven hundred seventy-two million, one hundred thirty-seven thousand, eight hundred seventy-one".