6401423455 has 12 divisors (see below), whose sum is σ = 8935864920. Its totient is φ = 4389547344.

The previous prime is 6401423447. The next prime is 6401423467. The reversal of 6401423455 is 5543241046.

It is not a de Polignac number, because 6401423455 - 2³ = 6401423447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6401423455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13063885 + ... + 13064374.

It is an arithmetic number, because the mean of its divisors is an integer number (744655410).

Almost surely, 2^6401423455 is an apocalyptic number.

6401423455 is a deficient number, since it is larger than the sum of its proper divisors (2534441465).

6401423455 is a wasteful number, since it uses less digits than its factorization.

6401423455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26128278 (or 26128271 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 6401423455 is about 80008.8960991214. The cubic root of 6401423455 is about 1856.7731710088.

The spelling of 6401423455 in words is "six billion, four hundred one million, four hundred twenty-three thousand, four hundred fifty-five".