7969690426 has 16 divisors (see below), whose sum is σ = 12078305928. Its totient is φ = 3943624000.

The previous prime is 7969690411. The next prime is 7969690447. The reversal of 7969690426 is 6240969697.

It can be written as a sum of positive squares in 4 ways, for example, as 6964737025 + 1004953401 = 83455^2 + 31701^2 .

It is a super-2 number, since 2×7969690426² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 521916 + ... + 536968.

Almost surely, 2^7969690426 is an apocalyptic number.

7969690426 is a deficient number, since it is larger than the sum of its proper divisors (4108615502).

7969690426 is a wasteful number, since it uses less digits than its factorization.

7969690426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17777.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The square root of 7969690426 is about 89273.1226405798. The cubic root of 7969690426 is about 1997.4710056083.

The spelling of 7969690426 in words is "seven billion, nine hundred sixty-nine million, six hundred ninety thousand, four hundred twenty-six".