6920948457 has 24 divisors (see below), whose sum is σ = 10279436544. Its totient is φ = 4483875744.

The previous prime is 6920948413. The next prime is 6920948471. The reversal of 6920948457 is 7548490296.

It is not a de Polignac number, because 6920948457 - 2⁸ = 6920948201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6920948407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275338 + ... + 299420.

It is an arithmetic number, because the mean of its divisors is an integer number (428309856).

Almost surely, 2^6920948457 is an apocalyptic number.

It is an amenable number.

6920948457 is a deficient number, since it is larger than the sum of its proper divisors (3358488087).

6920948457 is a wasteful number, since it uses less digits than its factorization.

6920948457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24989 (or 24986 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 6920948457 is about 83192.2379612425. The cubic root of 6920948457 is about 1905.7029443350.

The spelling of 6920948457 in words is "six billion, nine hundred twenty million, nine hundred forty-eight thousand, four hundred fifty-seven".