10920861500 has 24 divisors (see below), whose sum is σ = 23851162608. Its totient is φ = 4368344400.

The previous prime is 10920861451. The next prime is 10920861517. The reversal of 10920861500 is 516802901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10920362 + ... + 10921361.

It is an arithmetic number, because the mean of its divisors is an integer number (993798442).

Almost surely, 2^10920861500 is an apocalyptic number.

10920861500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10920861500 is an abundant number, since it is smaller than the sum of its proper divisors (12930301108).

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

10920861500 is a wasteful number, since it uses less digits than its factorization.

10920861500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21841742 (or 21841730 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 10920861500 in words is "ten billion, nine hundred twenty million, eight hundred sixty-one thousand, five hundred".