9400961979 has 10 divisors (see below), whose sum is σ = 14043412460. Its totient is φ = 6267307932.

The previous prime is 9400961953. The next prime is 9400961993. The reversal of 9400961979 is 9791690049.

It is not a de Polignac number, because 9400961979 - 2⁷ = 9400961851 is a prime.

It is a super-2 number, since 2×9400961979² (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 (9400961909) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 58030549 + ... + 58030710.

It is an arithmetic number, because the mean of its divisors is an integer number (1404341246).

Almost surely, 2^9400961979 is an apocalyptic number.

9400961979 is a deficient number, since it is larger than the sum of its proper divisors (4642450481).

9400961979 is a wasteful number, since it uses less digits than its factorization.

9400961979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116061271 (or 116061262 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 9400961979 is about 96958.5580493027. The cubic root of 9400961979 is about 2110.5262853930.

The spelling of 9400961979 in words is "nine billion, four hundred million, nine hundred sixty-one thousand, nine hundred seventy-nine".