102756381930 has 24 divisors (see below), whose sum is σ = 267166593252. Its totient is φ = 27401701824.

The previous prime is 102756381919. The next prime is 102756381947. The reversal of 102756381930 is 39183657201.

102756381930 is a `hidden beast` number, since 1 + 0 + 2 + 7 + 5 + 638 + 1 + 9 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 95557029129 + 7199352801 = 309123^2 + 84849^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570868699 + ... + 570868878.

Almost surely, 2^102756381930 is an apocalyptic number.

102756381930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102756381930 is an abundant number, since it is smaller than the sum of its proper divisors (164410211322).

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

102756381930 is a wasteful number, since it uses less digits than its factorization.

102756381930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141737590 (or 1141737587 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 102756381930 in words is "one hundred two billion, seven hundred fifty-six million, three hundred eighty-one thousand, nine hundred thirty".