20986037375 has 8 divisors (see below), whose sum is σ = 26190574800. Its totient is φ = 16788829800.

The previous prime is 20986037323. The next prime is 20986037441. The reversal of 20986037375 is 57373068902.

It is a happy number.

It is not a de Polignac number, because 20986037375 - 2⁸ = 20986037119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83944025 + ... + 83944274.

It is an arithmetic number, because the mean of its divisors is an integer number (3273821850).

Almost surely, 2^20986037375 is an apocalyptic number.

20986037375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20986037375 is a deficient number, since it is larger than the sum of its proper divisors (5204537425).

20986037375 is an equidigital number, since it uses as much as digits as its factorization.

20986037375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167888314 (or 167888304 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 20986037375 in words is "twenty billion, nine hundred eighty-six million, thirty-seven thousand, three hundred seventy-five".