61299524772304 has 160 divisors (see below), whose sum is σ = 147827749696256. Its totient is φ = 23976794603520.

The previous prime is 61299524772301. The next prime is 61299524772373. The reversal of 61299524772304 is 40327742599216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61299524772301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143985319 + ... + 144410425.

Almost surely, 2^{61299524772304} 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 61299524772304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73913874848128).

61299524772304 is an abundant number, since it is smaller than the sum of its proper divisors (86528224923952).

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

61299524772304 is a wasteful number, since it uses less digits than its factorization.

61299524772304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426253 (or 426247 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 61299524772304 in words is "sixty-one trillion, two hundred ninety-nine billion, five hundred twenty-four million, seven hundred seventy-two thousand, three hundred four".