7951120551 has 48 divisors (see below), whose sum is σ = 13206960000. Its totient is φ = 4558835520.

The previous prime is 7951120549. The next prime is 7951120553. The reversal of 7951120551 is 1550211597.

7951120551 is a `hidden beast` number, since 7 + 95 + 1 + 12 + 0 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (7951120549) and next prime (7951120553).

It is not a de Polignac number, because 7951120551 - 2¹ = 7951120549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7951120553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1556800 + ... + 1561898.

It is an arithmetic number, because the mean of its divisors is an integer number (275145000).

Almost surely, 2^7951120551 is an apocalyptic number.

7951120551 is a deficient number, since it is larger than the sum of its proper divisors (5255839449).

7951120551 is a wasteful number, since it uses less digits than its factorization.

7951120551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 36.

The square root of 7951120551 is about 89169.0560172081. The cubic root of 7951120551 is about 1995.9183884735.

The spelling of 7951120551 in words is "seven billion, nine hundred fifty-one million, one hundred twenty thousand, five hundred fifty-one".