61452115074 has 128 divisors (see below), whose sum is σ = 165235968000. Its totient is φ = 16537172544.

The previous prime is 61452115073. The next prime is 61452115177. The reversal of 61452115074 is 47051125416.

61452115074 is a `hidden beast` number, since 6 + 14 + 521 + 1 + 50 + 74 = 666.

61452115074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61452115073) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1217757 + ... + 1267215.

It is an arithmetic number, because the mean of its divisors is an integer number (1290906000).

Almost surely, 2^61452115074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61452115074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82617984000).

61452115074 is an abundant number, since it is smaller than the sum of its proper divisors (103783852926).

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

61452115074 is a wasteful number, since it uses less digits than its factorization.

61452115074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49669 (or 49663 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 61452115074 in words is "sixty-one billion, four hundred fifty-two million, one hundred fifteen thousand, seventy-four".