7974077969 has 16 divisors (see below), whose sum is σ = 9386147904. Its totient is φ = 6678676800.

The previous prime is 7974077959. The next prime is 7974077981. The reversal of 7974077969 is 9697704797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7974077969 is a prime.

It is a super-2 number, since 2×7974077969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7974077959) 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, 21479 + ... + 128099.

It is an arithmetic number, because the mean of its divisors is an integer number (586634244).

Almost surely, 2^7974077969 is an apocalyptic number.

It is an amenable number.

7974077969 is a deficient number, since it is larger than the sum of its proper divisors (1412069935).

7974077969 is a wasteful number, since it uses less digits than its factorization.

7974077969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107168.

The product of its (nonzero) digits is 42007896, while the sum is 65.

The square root of 7974077969 is about 89297.6929657200. The cubic root of 7974077969 is about 1997.8374933753.

The spelling of 7974077969 in words is "seven billion, nine hundred seventy-four million, seventy-seven thousand, nine hundred sixty-nine".