20750881535 has 8 divisors (see below), whose sum is σ = 24976289616. Its totient is φ = 16550550720.

The previous prime is 20750881511. The next prime is 20750881549. The reversal of 20750881535 is 53518805702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20750881535 - 2⁶ = 20750881471 is a prime.

It is a Duffinian number.

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, 6267494 + ... + 6270803.

It is an arithmetic number, because the mean of its divisors is an integer number (3122036202).

Almost surely, 2^20750881535 is an apocalyptic number.

20750881535 is a deficient number, since it is larger than the sum of its proper divisors (4225408081).

20750881535 is a wasteful number, since it uses less digits than its factorization.

20750881535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12538633.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 20750881535 in words is "twenty billion, seven hundred fifty million, eight hundred eighty-one thousand, five hundred thirty-five".