6940348731 has 8 divisors (see below), whose sum is σ = 10281998160. Its totient is φ = 4626899136.

The previous prime is 6940348729. The next prime is 6940348819. The reversal of 6940348731 is 1378430496.

It is not a de Polignac number, because 6940348731 - 2¹ = 6940348729 is a prime.

It is a super-2 number, since 2×6940348731² = 96336881015786620722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6940308731) by changing a digit.

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, 128524950 + ... + 128525003.

It is an arithmetic number, because the mean of its divisors is an integer number (1285249770).

Almost surely, 2^6940348731 is an apocalyptic number.

6940348731 is a deficient number, since it is larger than the sum of its proper divisors (3341649429).

6940348731 is a wasteful number, since it uses less digits than its factorization.

6940348731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257049962 (or 257049956 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 6940348731 is about 83308.7554282261. The cubic root of 6940348731 is about 1907.4819234397.

The spelling of 6940348731 in words is "six billion, nine hundred forty million, three hundred forty-eight thousand, seven hundred thirty-one".