61364425848 has 128 divisors (see below), whose sum is σ = 175190999040. Its totient is φ = 17741808000.

The previous prime is 61364425831. The next prime is 61364425861. The reversal of 61364425848 is 84852446316.

61364425848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61364425848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528261 + ... + 633867.

It is an arithmetic number, because the mean of its divisors is an integer number (1368679680).

Almost surely, 2^61364425848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61364425848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87595499520).

61364425848 is an abundant number, since it is smaller than the sum of its proper divisors (113826573192).

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

61364425848 is a wasteful number, since it uses less digits than its factorization.

61364425848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105729 (or 105725 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 51.

The spelling of 61364425848 in words is "sixty-one billion, three hundred sixty-four million, four hundred twenty-five thousand, eight hundred forty-eight".