20254570776943 has 24 divisors (see below), whose sum is σ = 21907458785520. Its totient is φ = 18702586277760.

The previous prime is 20254570776919. The next prime is 20254570776977. The reversal of 20254570776943 is 34967707545202.

It is not a de Polignac number, because 20254570776943 - 2⁵ = 20254570776911 is a prime.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254570776343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89524483 + ... + 89750443.

It is an arithmetic number, because the mean of its divisors is an integer number (912810782730).

Almost surely, 2^{20254570776943} is an apocalyptic number.

20254570776943 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20254570776943 is a deficient number, since it is larger than the sum of its proper divisors (1652888008577).

20254570776943 is a wasteful number, since it uses less digits than its factorization.

20254570776943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231879 (or 231856 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 61.

The spelling of 20254570776943 in words is "twenty trillion, two hundred fifty-four billion, five hundred seventy million, seven hundred seventy-six thousand, nine hundred forty-three".