20264888954 has 4 divisors (see below), whose sum is σ = 30397333434. Its totient is φ = 10132444476.

The previous prime is 20264888933. The next prime is 20264888977. The reversal of 20264888954 is 45988846202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19929815929 + 335073025 = 141173^2 + 18305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20264888954.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066222237 + ... + 5066222240.

Almost surely, 2^20264888954 is an apocalyptic number.

20264888954 is a deficient number, since it is larger than the sum of its proper divisors (10132444480).

20264888954 is a wasteful number, since it uses less digits than its factorization.

20264888954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132444479.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 20264888954 in words is "twenty billion, two hundred sixty-four million, eight hundred eighty-eight thousand, nine hundred fifty-four".