102787190740 has 48 divisors (see below), whose sum is σ = 232521109632. Its totient is φ = 37941757056.

The previous prime is 102787190731. The next prime is 102787190747. The reversal of 102787190740 is 47091787201.

It is a super-2 number, since 2×102787190740² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102787190747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926947 + ... + 1031893.

It is an arithmetic number, because the mean of its divisors is an integer number (4844189784).

Almost surely, 2^102787190740 is an apocalyptic number.

102787190740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102787190740 is an abundant number, since it is smaller than the sum of its proper divisors (129733918892).

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

102787190740 is a wasteful number, since it uses less digits than its factorization.

102787190740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108736 (or 108734 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 102787190740 in words is "one hundred two billion, seven hundred eighty-seven million, one hundred ninety thousand, seven hundred forty".