1955799459 has 32 divisors (see below), whose sum is σ = 3075935040. Its totient is φ = 1223963136.

The previous prime is 1955799449. The next prime is 1955799497. The reversal of 1955799459 is 9549975591.

1955799459 is a `hidden beast` number, since 1 + 9 + 5 + 579 + 9 + 4 + 59 = 666.

It is not a de Polignac number, because 1955799459 - 2¹¹ = 1955797411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1955799396 and 1955799405.

It is not an unprimeable number, because it can be changed into a prime (1955799449) 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, 176857 + ... + 187589.

It is an arithmetic number, because the mean of its divisors is an integer number (96122970).

Almost surely, 2^1955799459 is an apocalyptic number.

1955799459 is a deficient number, since it is larger than the sum of its proper divisors (1120135581).

1955799459 is a wasteful number, since it uses less digits than its factorization.

1955799459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11150 counting only the distinct ones).

The product of its digits is 22963500, while the sum is 63.

The square root of 1955799459 is about 44224.4215225027. The cubic root of 1955799459 is about 1250.5702910283.

The spelling of 1955799459 in words is "one billion, nine hundred fifty-five million, seven hundred ninety-nine thousand, four hundred fifty-nine".