20948634476 has 48 divisors (see below), whose sum is σ = 45729653760. Its totient is φ = 8157601920.

The previous prime is 20948634461. The next prime is 20948634527. The reversal of 20948634476 is 67443684902.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 618920 + ... + 651888.

It is an arithmetic number, because the mean of its divisors is an integer number (952701120).

Almost surely, 2^20948634476 is an apocalyptic number.

It is an amenable number.

20948634476 is an abundant number, since it is smaller than the sum of its proper divisors (24781019284).

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

20948634476 is a wasteful number, since it uses less digits than its factorization.

20948634476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35054 (or 35052 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 20948634476 in words is "twenty billion, nine hundred forty-eight million, six hundred thirty-four thousand, four hundred seventy-six".