1881747746340 has 96 divisors (see below), whose sum is σ = 6569010330624. Its totient is φ = 391012517760.

The previous prime is 1881747746297. The next prime is 1881747746381. The reversal of 1881747746340 is 436477471881.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203647734 + ... + 203656973.

It is an arithmetic number, because the mean of its divisors is an integer number (68427190944).

Almost surely, 2^{1881747746340} is an apocalyptic number.

1881747746340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881747746340 is an abundant number, since it is smaller than the sum of its proper divisors (4687262584284).

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

1881747746340 is a wasteful number, since it uses less digits than its factorization.

1881747746340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407304737 (or 407304735 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 60.

The spelling of 1881747746340 in words is "one trillion, eight hundred eighty-one billion, seven hundred forty-seven million, seven hundred forty-six thousand, three hundred forty".