40646869192 has 16 divisors (see below), whose sum is σ = 76698314460. Its totient is φ = 20193985344.

The previous prime is 40646869189. The next prime is 40646869201. The reversal of 40646869192 is 29196864604.

It can be written as a sum of positive squares in 2 ways, for example, as 40632077476 + 14791716 = 201574^2 + 3846^2 .

It is a super-2 number, since 2×40646869192² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16179823 + ... + 16182334.

Almost surely, 2^40646869192 is an apocalyptic number.

It is an amenable number.

40646869192 is a deficient number, since it is larger than the sum of its proper divisors (36051445268).

40646869192 is a wasteful number, since it uses less digits than its factorization.

40646869192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32362320 (or 32362316 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 40646869192 in words is "forty billion, six hundred forty-six million, eight hundred sixty-nine thousand, one hundred ninety-two".