102460047857 has 4 divisors (see below), whose sum is σ = 103207931556. Its totient is φ = 101712164160.

The previous prime is 102460047817. The next prime is 102460047883. The reversal of 102460047857 is 758740064201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 758740064201 = 7 ⋅108391437743.

It can be written as a sum of positive squares in 2 ways, for example, as 89427313936 + 13032733921 = 299044^2 + 114161^2 .

It is a cyclic number.

It is not a de Polignac number, because 102460047857 - 2⁸ = 102460047601 is a prime.

It is a super-2 number, since 2×102460047857² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102460047817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373941644 + ... + 373941917.

It is an arithmetic number, because the mean of its divisors is an integer number (25801982889).

Almost surely, 2^102460047857 is an apocalyptic number.

It is an amenable number.

102460047857 is a deficient number, since it is larger than the sum of its proper divisors (747883699).

102460047857 is an equidigital number, since it uses as much as digits as its factorization.

102460047857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747883698.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 102460047857 in words is "one hundred two billion, four hundred sixty million, forty-seven thousand, eight hundred fifty-seven".