6940218453 has 32 divisors (see below), whose sum is σ = 10771310592. Its totient is φ = 3892708800.

The previous prime is 6940218451. The next prime is 6940218463. The reversal of 6940218453 is 3548120496.

It is not a de Polignac number, because 6940218453 - 2¹ = 6940218451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940218451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638958 + ... + 649728.

It is an arithmetic number, because the mean of its divisors is an integer number (336603456).

Almost surely, 2^6940218453 is an apocalyptic number.

It is an amenable number.

6940218453 is a deficient number, since it is larger than the sum of its proper divisors (3831092139).

6940218453 is a wasteful number, since it uses less digits than its factorization.

6940218453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 6940218453 is about 83307.9735259477. The cubic root of 6940218453 is about 1907.4699881852.

The spelling of 6940218453 in words is "six billion, nine hundred forty million, two hundred eighteen thousand, four hundred fifty-three".