20776054731 has 8 divisors (see below), whose sum is σ = 27713798544. Its totient is φ = 13844507040.

The previous prime is 20776054727. The next prime is 20776054753. The reversal of 20776054731 is 13745067702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20776054731 - 2² = 20776054727 is a prime.

It is a super-2 number, since 2×20776054731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20776054771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541200 + ... + 1554621.

It is an arithmetic number, because the mean of its divisors is an integer number (3464224818).

Almost surely, 2^20776054731 is an apocalyptic number.

20776054731 is a deficient number, since it is larger than the sum of its proper divisors (6937743813).

20776054731 is a wasteful number, since it uses less digits than its factorization.

20776054731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098061.

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 20776054731 in words is "twenty billion, seven hundred seventy-six million, fifty-four thousand, seven hundred thirty-one".