20257363371 has 24 divisors (see below), whose sum is σ = 31713249600. Its totient is φ = 11467443792.

The previous prime is 20257363351. The next prime is 20257363381. The reversal of 20257363371 is 17336375202.

It is not a de Polignac number, because 20257363371 - 2¹⁰ = 20257362347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20257363331) 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, 628221 + ... + 659678.

It is an arithmetic number, because the mean of its divisors is an integer number (1321385400).

Almost surely, 2^20257363371 is an apocalyptic number.

20257363371 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20257363371 is a deficient number, since it is larger than the sum of its proper divisors (11455886229).

20257363371 is a wasteful number, since it uses less digits than its factorization.

20257363371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288023 (or 1288016 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 39.

The spelling of 20257363371 in words is "twenty billion, two hundred fifty-seven million, three hundred sixty-three thousand, three hundred seventy-one".