45421253979 has 4 divisors (see below), whose sum is σ = 60561671976. Its totient is φ = 30280835984.

The previous prime is 45421253951. The next prime is 45421253993. The reversal of 45421253979 is 97935212454.

45421253979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 45421253979 - 2⁹ = 45421253467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45421253179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7570208994 + ... + 7570208999.

It is an arithmetic number, because the mean of its divisors is an integer number (15140417994).

Almost surely, 2^45421253979 is an apocalyptic number.

45421253979 is a deficient number, since it is larger than the sum of its proper divisors (15140417997).

45421253979 is a wasteful number, since it uses less digits than its factorization.

45421253979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15140417996.

The product of its digits is 2721600, while the sum is 51.

It can be divided in two parts, 4542 and 1253979, that added together give a palindrome (1258521).

The spelling of 45421253979 in words is "forty-five billion, four hundred twenty-one million, two hundred fifty-three thousand, nine hundred seventy-nine".