20362643625 has 32 divisors (see below), whose sum is σ = 35051852160. Its totient is φ = 10485585600.

The previous prime is 20362643597. The next prime is 20362643629. The reversal of 20362643625 is 52634626302.

It is not a de Polignac number, because 20362643625 - 2¹¹ = 20362641577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20362643629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925339 + ... + 947088.

It is an arithmetic number, because the mean of its divisors is an integer number (1095370380).

Almost surely, 2^20362643625 is an apocalyptic number.

20362643625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20362643625 is a deficient number, since it is larger than the sum of its proper divisors (14689208535).

20362643625 is a wasteful number, since it uses less digits than its factorization.

20362643625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872474 (or 1872464 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 20362643625 in words is "twenty billion, three hundred sixty-two million, six hundred forty-three thousand, six hundred twenty-five".