61611469794 has 24 divisors (see below), whose sum is σ = 152561735040. Its totient is φ = 17603277048.

The previous prime is 61611469771. The next prime is 61611469807. The reversal of 61611469794 is 49796411616.

61611469794 is a `hidden beast` number, since 616 + 1 + 14 + 6 + 9 + 7 + 9 + 4 = 666.

61611469794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61611469794.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244489834 + ... + 244490085.

It is an arithmetic number, because the mean of its divisors is an integer number (6356738960).

Almost surely, 2^61611469794 is an apocalyptic number.

61611469794 is an abundant number, since it is smaller than the sum of its proper divisors (90950265246).

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

61611469794 is a wasteful number, since it uses less digits than its factorization.

61611469794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488979934 (or 488979931 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 61611469794 in words is "sixty-one billion, six hundred eleven million, four hundred sixty-nine thousand, seven hundred ninety-four".