203025611490 has 128 divisors (see below), whose sum is σ = 532395521280. Its totient is φ = 49252036608.

The previous prime is 203025611489. The next prime is 203025611491. The reversal of 203025611490 is 94116520302.

It is an interprime number because it is at equal distance from previous prime (203025611489) and next prime (203025611491).

It is not an unprimeable number, because it can be changed into a prime (203025611491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7413102 + ... + 7440438.

It is an arithmetic number, because the mean of its divisors is an integer number (4159340010).

Almost surely, 2^203025611490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203025611490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266197760640).

203025611490 is an abundant number, since it is smaller than the sum of its proper divisors (329369909790).

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

203025611490 is a wasteful number, since it uses less digits than its factorization.

203025611490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27636.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 203025611490 in words is "two hundred three billion, twenty-five million, six hundred eleven thousand, four hundred ninety".