202897995364 has 9 divisors (see below), whose sum is σ = 355073068441. Its totient is φ = 101448547240.

The previous prime is 202897995361. The next prime is 202897995413. The reversal of 202897995364 is 463599798202.

The square root of 202897995364 is 450442.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49265353764 + 153632641600 = 221958^2 + 391960^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202897995296 and 202897995305.

It is not an unprimeable number, because it can be changed into a prime (202897995361) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 788274 + ... + 1013494.

Almost surely, 2^202897995364 is an apocalyptic number.

202897995364 is the 450442-nd square number.

It is an amenable number.

202897995364 is a deficient number, since it is larger than the sum of its proper divisors (152175073077).

202897995364 is an frugal number, since it uses more digits than its factorization.

202897995364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450446 (or 225223 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 64.

Multiplying 202897995364 by its sum of digits (64), we get a square (12985471703296 = 3603536²).

The spelling of 202897995364 in words is "two hundred two billion, eight hundred ninety-seven million, nine hundred ninety-five thousand, three hundred sixty-four".