7957916253789 has 16 divisors (see below), whose sum is σ = 10691855116800. Its totient is φ = 5264629746480.

The previous prime is 7957916253761. The next prime is 7957916253829. The reversal of 7957916253789 is 9873526197597.

It is not a de Polignac number, because 7957916253789 - 2¹⁹ = 7957915729501 is a prime.

It is a super-2 number, since 2×7957916253789² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7957916253589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14547144 + ... + 15084270.

It is an arithmetic number, because the mean of its divisors is an integer number (668240944800).

Almost surely, 2^{7957916253789} is an apocalyptic number.

It is an amenable number.

7957916253789 is a deficient number, since it is larger than the sum of its proper divisors (2733938863011).

7957916253789 is a wasteful number, since it uses less digits than its factorization.

7957916253789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574960.

The product of its digits is 1800338400, while the sum is 78.

The spelling of 7957916253789 in words is "seven trillion, nine hundred fifty-seven billion, nine hundred sixteen million, two hundred fifty-three thousand, seven hundred eighty-nine".