61375136225344 has 28 divisors (see below), whose sum is σ = 121792308862444. Its totient is φ = 30687310370304.

The previous prime is 61375136225339. The next prime is 61375136225413. The reversal of 61375136225344 is 44352263157316.

It can be written as a sum of positive squares in 2 ways, for example, as 40293447634944 + 21081688590400 = 6347712^2 + 4591480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61375136225291 and 61375136225300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3769342 + ... + 11702914.

Almost surely, 2^{61375136225344} is an apocalyptic number.

61375136225344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61375136225344 is a deficient number, since it is larger than the sum of its proper divisors (60417172637100).

61375136225344 is a wasteful number, since it uses less digits than its factorization.

61375136225344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054462 (or 8054452 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 52.

The spelling of 61375136225344 in words is "sixty-one trillion, three hundred seventy-five billion, one hundred thirty-six million, two hundred twenty-five thousand, three hundred forty-four".