203788821240072 has 48 divisors (see below), whose sum is σ = 580976902662000. Its totient is φ = 64354364601696.

The previous prime is 203788821240061. The next prime is 203788821240083. The reversal of 203788821240072 is 270042128887302.

203788821240072 is a `hidden beast` number, since 2 + 0 + 3 + 7 + 88 + 82 + 12 + 400 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (203788821240061) and next prime (203788821240083).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74484216922 + ... + 74484219657.

It is an arithmetic number, because the mean of its divisors is an integer number (12103685472125).

Almost surely, 2^{203788821240072} is an apocalyptic number.

It is an amenable number.

203788821240072 is an abundant number, since it is smaller than the sum of its proper divisors (377188081421928).

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

203788821240072 is a wasteful number, since it uses less digits than its factorization.

203788821240072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148968436610 (or 148968436603 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 203788821240072 in words is "two hundred three trillion, seven hundred eighty-eight billion, eight hundred twenty-one million, two hundred forty thousand, seventy-two".