102357428618 has 4 divisors (see below), whose sum is σ = 153536142930. Its totient is φ = 51178714308.

The previous prime is 102357428597. The next prime is 102357428623. The reversal of 102357428618 is 816824753201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 98918427169 + 3439001449 = 314513^2 + 58643^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25589357153 + ... + 25589357156.

Almost surely, 2^102357428618 is an apocalyptic number.

102357428618 is a deficient number, since it is larger than the sum of its proper divisors (51178714312).

102357428618 is an equidigital number, since it uses as much as digits as its factorization.

102357428618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51178714311.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 102357428618 in words is "one hundred two billion, three hundred fifty-seven million, four hundred twenty-eight thousand, six hundred eighteen".