20767196896875 has 864 divisors, whose sum is σ = 47058366071808. Its totient is φ = 9067593600000.

The previous prime is 20767196896843. The next prime is 20767196896877. The reversal of 20767196896875 is 57869869176702.

20767196896875 is a `hidden beast` number, since 207 + 67 + 196 + 8 + 96 + 87 + 5 = 666.

It is not a de Polignac number, because 20767196896875 - 2⁵ = 20767196896843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 20767196896794 and 20767196896803.

It is not an unprimeable number, because it can be changed into a prime (20767196896877) by changing a digit.

It is a polite number, since it can be written in 863 ways as a sum of consecutive naturals, for example, 66348871719 + ... + 66348872031.

It is an arithmetic number, because the mean of its divisors is an integer number (54465701472).

Almost surely, 2^{20767196896875} is an apocalyptic number.

20767196896875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20767196896875 is an abundant number, since it is smaller than the sum of its proper divisors (26291169174933).

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

20767196896875 is an equidigital number, since it uses as much as digits as its factorization.

20767196896875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 3840721920, while the sum is 81.

The spelling of 20767196896875 in words is "twenty trillion, seven hundred sixty-seven billion, one hundred ninety-six million, eight hundred ninety-six thousand, eight hundred seventy-five".