40694971941 has 20 divisors (see below), whose sum is σ = 65467506412. Its totient is φ = 25043059008.

The previous prime is 40694971903. The next prime is 40694971963. The reversal of 40694971941 is 14917949604.

40694971941 is a `hidden beast` number, since 4 + 0 + 69 + 497 + 1 + 94 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5249002500 + 35445969441 = 72450^2 + 188271^2 .

It is not a de Polignac number, because 40694971941 - 2¹⁴ = 40694955557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40694971991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19322296 + ... + 19324401.

Almost surely, 2^40694971941 is an apocalyptic number.

It is an amenable number.

40694971941 is a deficient number, since it is larger than the sum of its proper divisors (24772534471).

40694971941 is a wasteful number, since it uses less digits than its factorization.

40694971941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38646722 (or 38646713 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 40694971941 in words is "forty billion, six hundred ninety-four million, nine hundred seventy-one thousand, nine hundred forty-one".