61817741125 has 64 divisors (see below), whose sum is σ = 92235386880. Its totient is φ = 40444008000.

The previous prime is 61817741119. The next prime is 61817741147. The reversal of 61817741125 is 52114771816.

It is not a de Polignac number, because 61817741125 - 2⁷ = 61817740997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8428710 + ... + 8436040.

It is an arithmetic number, because the mean of its divisors is an integer number (1441177920).

Almost surely, 2^61817741125 is an apocalyptic number.

It is an amenable number.

61817741125 is a deficient number, since it is larger than the sum of its proper divisors (30417645755).

61817741125 is a wasteful number, since it uses less digits than its factorization.

61817741125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795 (or 7785 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The spelling of 61817741125 in words is "sixty-one billion, eight hundred seventeen million, seven hundred forty-one thousand, one hundred twenty-five".