6785401455 has 32 divisors (see below), whose sum is σ = 13786214400. Its totient is φ = 3101897376.

The previous prime is 6785401423. The next prime is 6785401457. The reversal of 6785401455 is 5541045876.

6785401455 is a `hidden beast` number, since 67 + 8 + 540 + 1 + 45 + 5 = 666.

It is not a de Polignac number, because 6785401455 - 2⁵ = 6785401423 is a prime.

It is a super-2 number, since 2×6785401455² = 92083345811032234050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6785401455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6785401457) 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, 3589215 + ... + 3591104.

It is an arithmetic number, because the mean of its divisors is an integer number (430819200).

Almost surely, 2^6785401455 is an apocalyptic number.

6785401455 is an abundant number, since it is smaller than the sum of its proper divisors (7000812945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6785401455 is a wasteful number, since it uses less digits than its factorization.

6785401455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180340 (or 7180334 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 6785401455 is about 82373.5482724885. The cubic root of 6785401455 is about 1893.1797443856.

The spelling of 6785401455 in words is "six billion, seven hundred eighty-five million, four hundred one thousand, four hundred fifty-five".