6861699740 has 24 divisors (see below), whose sum is σ = 16468079712. Its totient is φ = 2352582720.

The previous prime is 6861699737. The next prime is 6861699809. The reversal of 6861699740 is 479961686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24505931 + ... + 24506210.

It is an arithmetic number, because the mean of its divisors is an integer number (686169988).

Almost surely, 2^6861699740 is an apocalyptic number.

It is an amenable number.

6861699740 is an abundant number, since it is smaller than the sum of its proper divisors (9606379972).

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

6861699740 is a wasteful number, since it uses less digits than its factorization.

6861699740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49012157 (or 49012155 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 6861699740 is about 82835.3773456728. The cubic root of 6861699740 is about 1900.2492507725.

The spelling of 6861699740 in words is "six billion, eight hundred sixty-one million, six hundred ninety-nine thousand, seven hundred forty".