61530610750 has 96 divisors (see below), whose sum is σ = 134110922400. Its totient is φ = 21077347200.

The previous prime is 61530610733. The next prime is 61530610787. The reversal of 61530610750 is 5701603516.

61530610750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25711554 + ... + 25713946.

It is an arithmetic number, because the mean of its divisors is an integer number (1396988775).

Almost surely, 2^61530610750 is an apocalyptic number.

61530610750 is an abundant number, since it is smaller than the sum of its proper divisors (72580311650).

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

61530610750 is a wasteful number, since it uses less digits than its factorization.

61530610750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523 (or 4506 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 61530610750 in words is "sixty-one billion, five hundred thirty million, six hundred ten thousand, seven hundred fifty".