7797420051 has 8 divisors (see below), whose sum is σ = 10943747520. Its totient is φ = 4924686312.

The previous prime is 7797420041. The next prime is 7797420061. The reversal of 7797420051 is 1500247977.

It is an interprime number because it is at equal distance from previous prime (7797420041) and next prime (7797420061).

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

It is not a de Polignac number, because 7797420051 - 2¹⁷ = 7797288979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7797419985 and 7797420012.

It is not an unprimeable number, because it can be changed into a prime (7797420041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68398365 + ... + 68398478.

It is an arithmetic number, because the mean of its divisors is an integer number (1367968440).

Almost surely, 2^7797420051 is an apocalyptic number.

7797420051 is a deficient number, since it is larger than the sum of its proper divisors (3146327469).

7797420051 is a wasteful number, since it uses less digits than its factorization.

7797420051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136796865.

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 7797420051 is about 88303.0013702819. The cubic root of 7797420051 is about 1982.9738032070.

The spelling of 7797420051 in words is "seven billion, seven hundred ninety-seven million, four hundred twenty thousand, fifty-one".