61486260894 has 32 divisors (see below), whose sum is σ = 136813908000. Its totient is φ = 20468754432.

The previous prime is 61486260877. The next prime is 61486260907. The reversal of 61486260894 is 49806268416.

61486260894 is a `hidden beast` number, since 6 + 1 + 4 + 8 + 626 + 0 + 8 + 9 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61486260894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698809 + ... + 781860.

It is an arithmetic number, because the mean of its divisors is an integer number (4275434625).

Almost surely, 2^61486260894 is an apocalyptic number.

61486260894 is an abundant number, since it is smaller than the sum of its proper divisors (75327647106).

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

61486260894 is a wasteful number, since it uses less digits than its factorization.

61486260894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481449 (or 1481443 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 61486260894 in words is "sixty-one billion, four hundred eighty-six million, two hundred sixty thousand, eight hundred ninety-four".