6953440977 has 16 divisors (see below), whose sum is σ = 11773022080. Its totient is φ = 3973394736.

The previous prime is 6953440973. The next prime is 6953440979. The reversal of 6953440977 is 7790443596.

It is a happy number.

6953440977 is a `hidden beast` number, since 69 + 53 + 440 + 97 + 7 = 666.

It is not a de Polignac number, because 6953440977 - 2² = 6953440973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6953440973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18395158 + ... + 18395535.

It is an arithmetic number, because the mean of its divisors is an integer number (735813880).

Almost surely, 2^6953440977 is an apocalyptic number.

It is an amenable number.

6953440977 is a deficient number, since it is larger than the sum of its proper divisors (4819581103).

6953440977 is a wasteful number, since it uses less digits than its factorization.

6953440977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36790709 (or 36790703 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The square root of 6953440977 is about 83387.2950574606. The cubic root of 6953440977 is about 1908.6805921164.

The spelling of 6953440977 in words is "six billion, nine hundred fifty-three million, four hundred forty thousand, nine hundred seventy-seven".