102485675834 has 4 divisors (see below), whose sum is σ = 153728513754. Its totient is φ = 51242837916.

The previous prime is 102485675819. The next prime is 102485675861. The reversal of 102485675834 is 438576584201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438576584201 = 7 ⋅62653797743.

It can be written as a sum of positive squares in only one way, i.e., 102110285209 + 375390625 = 319547^2 + 19375^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25621418957 + ... + 25621418960.

Almost surely, 2^102485675834 is an apocalyptic number.

102485675834 is a deficient number, since it is larger than the sum of its proper divisors (51242837920).

102485675834 is an equidigital number, since it uses as much as digits as its factorization.

102485675834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51242837919.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 102485675834 in words is "one hundred two billion, four hundred eighty-five million, six hundred seventy-five thousand, eight hundred thirty-four".