61465192832 has 64 divisors (see below), whose sum is σ = 128749683600. Its totient is φ = 29186304000.

The previous prime is 61465192823. The next prime is 61465192837. The reversal of 61465192832 is 23829156416.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61465192837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90707 + ... + 362157.

Almost surely, 2^61465192832 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 61465192832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64374841800).

61465192832 is an abundant number, since it is smaller than the sum of its proper divisors (67284490768).

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

61465192832 is a wasteful number, since it uses less digits than its factorization.

61465192832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271555 (or 271543 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The spelling of 61465192832 in words is "sixty-one billion, four hundred sixty-five million, one hundred ninety-two thousand, eight hundred thirty-two".