102152172818 has 8 divisors (see below), whose sum is σ = 156791707248. Its totient is φ = 49888270404.

The previous prime is 102152172803. The next prime is 102152172833. The reversal of 102152172818 is 818271251201.

It is an interprime number because it is at equal distance from previous prime (102152172803) and next prime (102152172833).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102152172818² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593907896 + ... + 593908067.

It is an arithmetic number, because the mean of its divisors is an integer number (19598963406).

Almost surely, 2^102152172818 is an apocalyptic number.

102152172818 is a deficient number, since it is larger than the sum of its proper divisors (54639534430).

102152172818 is a wasteful number, since it uses less digits than its factorization.

102152172818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187816008.

The product of its (nonzero) digits is 17920, while the sum is 38.

The spelling of 102152172818 in words is "one hundred two billion, one hundred fifty-two million, one hundred seventy-two thousand, eight hundred eighteen".