7913396551 has 4 divisors (see below), whose sum is σ = 7925405400. Its totient is φ = 7901387704.

The previous prime is 7913396549. The next prime is 7913396573. The reversal of 7913396551 is 1556933197.

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 7913396551 - 2¹ = 7913396549 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7913396495 and 7913396504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913396531) 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, 6003436 + ... + 6004753.

It is an arithmetic number, because the mean of its divisors is an integer number (1981351350).

Almost surely, 2^7913396551 is an apocalyptic number.

7913396551 is a deficient number, since it is larger than the sum of its proper divisors (12008849).

7913396551 is a wasteful number, since it uses less digits than its factorization.

7913396551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008848.

The product of its digits is 765450, while the sum is 49.

The square root of 7913396551 is about 88957.2737385763. The cubic root of 7913396551 is about 1992.7568459430.

The spelling of 7913396551 in words is "seven billion, nine hundred thirteen million, three hundred ninety-six thousand, five hundred fifty-one".