7730473455 has 24 divisors (see below), whose sum is σ = 13761638592. Its totient is φ = 4011488064.

The previous prime is 7730473451. The next prime is 7730473469. The reversal of 7730473455 is 5543740377.

It is not a de Polignac number, because 7730473455 - 2² = 7730473451 is a prime.

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 7730473455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7730473451) 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, 2319799 + ... + 2323128.

It is an arithmetic number, because the mean of its divisors is an integer number (573401608).

Almost surely, 2^7730473455 is an apocalyptic number.

7730473455 is a deficient number, since it is larger than the sum of its proper divisors (6031165137).

7730473455 is a wasteful number, since it uses less digits than its factorization.

7730473455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642975 (or 4642972 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 45.

The square root of 7730473455 is about 87923.1110402720. Note that the first 3 decimals coincide. The cubic root of 7730473455 is about 1977.2823866325.

The spelling of 7730473455 in words is "seven billion, seven hundred thirty million, four hundred seventy-three thousand, four hundred fifty-five".