45454687979 has 4 divisors (see below), whose sum is σ = 45458598984. Its totient is φ = 45450776976.

The previous prime is 45454687961. The next prime is 45454688003. The reversal of 45454687979 is 97978645454.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45454687979 is a prime.

It is a super-3 number, since 3×45454687979³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45454687909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1938017 + ... + 1961330.

It is an arithmetic number, because the mean of its divisors is an integer number (11364649746).

Almost surely, 2^45454687979 is an apocalyptic number.

45454687979 is a deficient number, since it is larger than the sum of its proper divisors (3911005).

45454687979 is a wasteful number, since it uses less digits than its factorization.

45454687979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911004.

The product of its digits is 304819200, while the sum is 68.

The spelling of 45454687979 in words is "forty-five billion, four hundred fifty-four million, six hundred eighty-seven thousand, nine hundred seventy-nine".