786949731940 has 24 divisors (see below), whose sum is σ = 1652688636480. Its totient is φ = 314761950048.

The previous prime is 786949731923. The next prime is 786949731973. The reversal of 786949731940 is 49137949687.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758920 + ... + 1466239.

It is an arithmetic number, because the mean of its divisors is an integer number (68862026520).

Almost surely, 2^786949731940 is an apocalyptic number.

It is an amenable number.

786949731940 is an abundant number, since it is smaller than the sum of its proper divisors (865738904540).

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

786949731940 is a wasteful number, since it uses less digits than its factorization.

786949731940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242851 (or 2242849 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 786949731940 in words is "seven hundred eighty-six billion, nine hundred forty-nine million, seven hundred thirty-one thousand, nine hundred forty".