15914022946 has 4 divisors (see below), whose sum is σ = 23871034422. Its totient is φ = 7957011472.

The previous prime is 15914022937. The next prime is 15914022947. The reversal of 15914022946 is 64922041951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64922041951 = 13 ⋅4994003227.

It can be written as a sum of positive squares in only one way, i.e., 15911047321 + 2975625 = 126139^2 + 1725^2 .

It is a super-2 number, since 2×15914022946² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15914022947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3978505735 + ... + 3978505738.

Almost surely, 2^15914022946 is an apocalyptic number.

15914022946 is a deficient number, since it is larger than the sum of its proper divisors (7957011476).

15914022946 is an equidigital number, since it uses as much as digits as its factorization.

15914022946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957011475.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 15914022946 in words is "fifteen billion, nine hundred fourteen million, twenty-two thousand, nine hundred forty-six".