7940253923231 has 4 divisors (see below), whose sum is σ = 9074575912272. Its totient is φ = 6805931934192.

The previous prime is 7940253923089. The next prime is 7940253923291. The reversal of 7940253923231 is 1323293520497.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7940253923231 - 2²² = 7940249728927 is a prime.

It is a super-2 number, since 2×7940253923231² (a number of 27 digits) contains 22 as substring.

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 7940253923231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940253923291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567160994510 + ... + 567160994523.

It is an arithmetic number, because the mean of its divisors is an integer number (2268643978068).

Almost surely, 2^{7940253923231} is an apocalyptic number.

7940253923231 is a deficient number, since it is larger than the sum of its proper divisors (1134321989041).

7940253923231 is a wasteful number, since it uses less digits than its factorization.

7940253923231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134321989040.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 7940253923231 in words is "seven trillion, nine hundred forty billion, two hundred fifty-three million, nine hundred twenty-three thousand, two hundred thirty-one".