13007953946 has 16 divisors (see below), whose sum is σ = 21229480104. Its totient is φ = 5941776384.

The previous prime is 13007953913. The next prime is 13007954077. The reversal of 13007953946 is 64935970031.

It can be written as a sum of positive squares in 4 ways, for example, as 8678971921 + 4328982025 = 93161^2 + 65795^2 .

It is a super-2 number, since 2×13007953946² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13007953946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576375 + ... + 2581418.

Almost surely, 2^13007953946 is an apocalyptic number.

13007953946 is a deficient number, since it is larger than the sum of its proper divisors (8221526158).

13007953946 is a wasteful number, since it uses less digits than its factorization.

13007953946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157905.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 13007953946 in words is "thirteen billion, seven million, nine hundred fifty-three thousand, nine hundred forty-six".