61825184890 has 32 divisors (see below), whose sum is σ = 128308769280. Its totient is φ = 21009617664.

The previous prime is 61825184849. The next prime is 61825184989. The reversal of 61825184890 is 9848152816.

It is a happy number.

61825184890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3900130 + ... + 3915949.

It is an arithmetic number, because the mean of its divisors is an integer number (4009649040).

Almost surely, 2^61825184890 is an apocalyptic number.

61825184890 is an abundant number, since it is smaller than the sum of its proper divisors (66483584390).

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

61825184890 is a wasteful number, since it uses less digits than its factorization.

61825184890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7816206.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 61825184890 in words is "sixty-one billion, eight hundred twenty-five million, one hundred eighty-four thousand, eight hundred ninety".