45481989458 has 4 divisors (see below), whose sum is σ = 68222984190. Its totient is φ = 22740994728.

The previous prime is 45481989457. The next prime is 45481989463. The reversal of 45481989458 is 85498918454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44843568169 + 638421289 = 211763^2 + 25267^2 .

It is a super-2 number, since 2×45481989458² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45481989394 and 45481989403.

It is not an unprimeable number, because it can be changed into a prime (45481989457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11370497363 + ... + 11370497366.

Almost surely, 2^45481989458 is an apocalyptic number.

45481989458 is a deficient number, since it is larger than the sum of its proper divisors (22740994732).

45481989458 is a wasteful number, since it uses less digits than its factorization.

45481989458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22740994731.

The product of its digits is 66355200, while the sum is 65.

The spelling of 45481989458 in words is "forty-five billion, four hundred eighty-one million, nine hundred eighty-nine thousand, four hundred fifty-eight".