20215854758948 has 48 divisors (see below), whose sum is σ = 35630663174400. Its totient is φ = 10035949158144.

The previous prime is 20215854758941. The next prime is 20215854758977. The reversal of 20215854758948 is 84985745851202.

It is not an unprimeable number, because it can be changed into a prime (20215854758941) 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, 991011653 + ... + 991032051.

It is an arithmetic number, because the mean of its divisors is an integer number (742305482800).

Almost surely, 2^{20215854758948} is an apocalyptic number.

It is an amenable number.

20215854758948 is a deficient number, since it is larger than the sum of its proper divisors (15414808415452).

20215854758948 is a wasteful number, since it uses less digits than its factorization.

20215854758948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23796 (or 23794 counting only the distinct ones).

The product of its (nonzero) digits is 258048000, while the sum is 68.

The spelling of 20215854758948 in words is "twenty trillion, two hundred fifteen billion, eight hundred fifty-four million, seven hundred fifty-eight thousand, nine hundred forty-eight".