40994164474 has 4 divisors (see below), whose sum is σ = 61491246714. Its totient is φ = 20497082236.

The previous prime is 40994164469. The next prime is 40994164501. The reversal of 40994164474 is 47446149904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31115196025 + 9878968449 = 176395^2 + 99393^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10248541117 + ... + 10248541120.

Almost surely, 2^40994164474 is an apocalyptic number.

40994164474 is a deficient number, since it is larger than the sum of its proper divisors (20497082240).

40994164474 is a wasteful number, since it uses less digits than its factorization.

40994164474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20497082239.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 40994164474 in words is "forty billion, nine hundred ninety-four million, one hundred sixty-four thousand, four hundred seventy-four".