7997437451 has 4 divisors (see below), whose sum is σ = 8002324512. Its totient is φ = 7992550392.

The previous prime is 7997437439. The next prime is 7997437453. The reversal of 7997437451 is 1547347997.

It is a happy number.

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 7997437451 - 2¹⁰ = 7997436427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7997437453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441075 + ... + 2444348.

It is an arithmetic number, because the mean of its divisors is an integer number (2000581128).

Almost surely, 2^7997437451 is an apocalyptic number.

7997437451 is a deficient number, since it is larger than the sum of its proper divisors (4887061).

7997437451 is a wasteful number, since it uses less digits than its factorization.

7997437451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887060.

The product of its digits is 6667920, while the sum is 56.

The square root of 7997437451 is about 89428.3928682608. The cubic root of 7997437451 is about 1999.7864314450.

The spelling of 7997437451 in words is "seven billion, nine hundred ninety-seven million, four hundred thirty-seven thousand, four hundred fifty-one".