45781992612 has 24 divisors (see below), whose sum is σ = 118694055200. Its totient is φ = 15260664168.

The previous prime is 45781992541. The next prime is 45781992617. The reversal of 45781992612 is 21629918754.

It is a happy number.

45781992612 is a `hidden beast` number, since 4 + 5 + 7 + 8 + 19 + 9 + 2 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (45781992617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211953562 + ... + 211953777.

Almost surely, 2^45781992612 is an apocalyptic number.

It is an amenable number.

45781992612 is an abundant number, since it is smaller than the sum of its proper divisors (72912062588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45781992612 is a wasteful number, since it uses less digits than its factorization.

45781992612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423907352 (or 423907344 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 45781992612 in words is "forty-five billion, seven hundred eighty-one million, nine hundred ninety-two thousand, six hundred twelve".