61311075107352 has 64 divisors (see below), whose sum is σ = 175293586329600. Its totient is φ = 17505541428480.

The previous prime is 61311075107339. The next prime is 61311075107363. The reversal of 61311075107352 is 25370157011316.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123800077 + ... + 124294332.

It is an arithmetic number, because the mean of its divisors is an integer number (2738962286400).

Almost surely, 2^{61311075107352} is an apocalyptic number.

It is an amenable number.

61311075107352 is an abundant number, since it is smaller than the sum of its proper divisors (113982511222248).

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

61311075107352 is a wasteful number, since it uses less digits than its factorization.

61311075107352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248095896 (or 248095892 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 61311075107352 in words is "sixty-one trillion, three hundred eleven billion, seventy-five million, one hundred seven thousand, three hundred fifty-two".