20792887451 has 16 divisors (see below), whose sum is σ = 24617960640. Its totient is φ = 17183241600.

The previous prime is 20792887433. The next prime is 20792887469. The reversal of 20792887451 is 15478829702.

It is an interprime number because it is at equal distance from previous prime (20792887433) and next prime (20792887469).

It is not a de Polignac number, because 20792887451 - 2¹⁰ = 20792886427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20792887393 and 20792887402.

It is not an unprimeable number, because it can be changed into a prime (20792887651) 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, 69245 + ... + 215361.

It is an arithmetic number, because the mean of its divisors is an integer number (1538622540).

Almost surely, 2^20792887451 is an apocalyptic number.

20792887451 is a deficient number, since it is larger than the sum of its proper divisors (3825073189).

20792887451 is a wasteful number, since it uses less digits than its factorization.

20792887451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146854.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 20792887451 in words is "twenty billion, seven hundred ninety-two million, eight hundred eighty-seven thousand, four hundred fifty-one".