30105762990 has 32 divisors (see below), whose sum is σ = 74206640160. Its totient is φ = 7811224704.

The previous prime is 30105762977. The next prime is 30105763007. The reversal of 30105762990 is 9926750103.

It is a Curzon number.

It is a congruent number.

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, 13560045 + ... + 13562264.

It is an arithmetic number, because the mean of its divisors is an integer number (2318957505).

Almost surely, 2^30105762990 is an apocalyptic number.

30105762990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30105762990 is an abundant number, since it is smaller than the sum of its proper divisors (44100877170).

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

30105762990 is a wasteful number, since it uses less digits than its factorization.

30105762990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27122356.

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

The spelling of 30105762990 in words is "thirty billion, one hundred five million, seven hundred sixty-two thousand, nine hundred ninety".