253878010818 has 16 divisors (see below), whose sum is σ = 509992835040. Its totient is φ = 84253201376.

The previous prime is 253878010817. The next prime is 253878010819. The reversal of 253878010818 is 818010878352.

It is an interprime number because it is at equal distance from previous prime (253878010817) and next prime (253878010819).

It is not an unprimeable number, because it can be changed into a prime (253878010817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93199083 + ... + 93201806.

It is an arithmetic number, because the mean of its divisors is an integer number (31874552190).

Almost surely, 2^253878010818 is an apocalyptic number.

253878010818 is an abundant number, since it is smaller than the sum of its proper divisors (256114824222).

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

253878010818 is a wasteful number, since it uses less digits than its factorization.

253878010818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186401121.

The product of its (nonzero) digits is 860160, while the sum is 51.

The spelling of 253878010818 in words is "two hundred fifty-three billion, eight hundred seventy-eight million, ten thousand, eight hundred eighteen".