61485175248 has 40 divisors (see below), whose sum is σ = 181527661248. Its totient is φ = 17567192832.

The previous prime is 61485175231. The next prime is 61485175249. The reversal of 61485175248 is 84257158416.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61485175248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61485175249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91495461 + ... + 91496132.

Almost surely, 2^61485175248 is an apocalyptic number.

It is an amenable number.

61485175248 is an abundant number, since it is smaller than the sum of its proper divisors (120042486000).

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

61485175248 is a wasteful number, since it uses less digits than its factorization.

61485175248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182991611 (or 182991605 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The spelling of 61485175248 in words is "sixty-one billion, four hundred eighty-five million, one hundred seventy-five thousand, two hundred forty-eight".