61544772301348 has 48 divisors (see below), whose sum is σ = 131062514284800. Its totient is φ = 25229533973952.

The previous prime is 61544772301297. The next prime is 61544772301349. The reversal of 61544772301348 is 84310327744516.

It is a super-2 number, since 2×61544772301348² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61544772301349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975135961 + ... + 975199072.

It is an arithmetic number, because the mean of its divisors is an integer number (2730469047600).

Almost surely, 2^{61544772301348} is an apocalyptic number.

It is an amenable number.

61544772301348 is an abundant number, since it is smaller than the sum of its proper divisors (69517741983452).

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

61544772301348 is a wasteful number, since it uses less digits than its factorization.

61544772301348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950335081 (or 1950335065 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 61544772301348 in words is "sixty-one trillion, five hundred forty-four billion, seven hundred seventy-two million, three hundred one thousand, three hundred forty-eight".