61786514448 has 40 divisors (see below), whose sum is σ = 177350181600. Its totient is φ = 20595504672.

The previous prime is 61786514443. The next prime is 61786514479. The reversal of 61786514448 is 84441568716.

61786514448 is a `hidden beast` number, since 6 + 1 + 7 + 86 + 514 + 4 + 48 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 61786514394 and 61786514403.

It is not an unprimeable number, because it can be changed into a prime (61786514441) 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, 71511738 + ... + 71512601.

It is an arithmetic number, because the mean of its divisors is an integer number (4433754540).

Almost surely, 2^61786514448 is an apocalyptic number.

It is an amenable number.

61786514448 is an abundant number, since it is smaller than the sum of its proper divisors (115563667152).

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

61786514448 is a wasteful number, since it uses less digits than its factorization.

61786514448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143024356 (or 143024344 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 61786514448 in words is "sixty-one billion, seven hundred eighty-six million, five hundred fourteen thousand, four hundred forty-eight".