61930752090 has 32 divisors (see below), whose sum is σ = 148640429376. Its totient is φ = 16514131200.

The previous prime is 61930752067. The next prime is 61930752097. The reversal of 61930752090 is 9025703916.

61930752090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61930752097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137490 + ... + 1190690.

It is an arithmetic number, because the mean of its divisors is an integer number (4645013418).

Almost surely, 2^61930752090 is an apocalyptic number.

61930752090 is an abundant number, since it is smaller than the sum of its proper divisors (86709677286).

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

61930752090 is a wasteful number, since it uses less digits than its factorization.

61930752090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92014.

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 61930752090 in words is "sixty-one billion, nine hundred thirty million, seven hundred fifty-two thousand, ninety".