61064089140925 has 12 divisors (see below), whose sum is σ = 81544045191700. Its totient is φ = 45093481211520.

The previous prime is 61064089140917. The next prime is 61064089140961. The reversal of 61064089140925 is 52904198046016.

It can be written as a sum of positive squares in 6 ways, for example, as 1358348292324 + 59705740848601 = 1165482^2 + 7726949^2 .

It is not a de Polignac number, because 61064089140925 - 2³ = 61064089140917 is a prime.

It is a super-2 number, since 2×61064089140925² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93944752200 + ... + 93944752849.

Almost surely, 2^{61064089140925} is an apocalyptic number.

61064089140925 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61064089140925 is a deficient number, since it is larger than the sum of its proper divisors (20479956050775).

61064089140925 is a wasteful number, since it uses less digits than its factorization.

61064089140925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187889505072 (or 187889505067 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 61064089140925 in words is "sixty-one trillion, sixty-four billion, eighty-nine million, one hundred forty thousand, nine hundred twenty-five".