102748294920 has 64 divisors (see below), whose sum is σ = 308272547520. Its totient is φ = 27397086464.

The previous prime is 102748294919. The next prime is 102748294949. The reversal of 102748294920 is 29492847201.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 102748294920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591102 + ... + 1654418.

It is an arithmetic number, because the mean of its divisors is an integer number (4816758555).

Almost surely, 2^102748294920 is an apocalyptic number.

102748294920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102748294920 is an abundant number, since it is smaller than the sum of its proper divisors (205524252600).

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

102748294920 is a wasteful number, since it uses less digits than its factorization.

102748294920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76854 (or 76850 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 102748294920 in words is "one hundred two billion, seven hundred forty-eight million, two hundred ninety-four thousand, nine hundred twenty".