45642040251 has 8 divisors (see below), whose sum is σ = 61320604224. Its totient is φ = 30195751560.

The previous prime is 45642040243. The next prime is 45642040261. The reversal of 45642040251 is 15204024654.

45642040251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45642040251 - 2³ = 45642040243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45642040231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58068361 + ... + 58069146.

It is an arithmetic number, because the mean of its divisors is an integer number (7665075528).

Almost surely, 2^45642040251 is an apocalyptic number.

45642040251 is a deficient number, since it is larger than the sum of its proper divisors (15678563973).

45642040251 is a wasteful number, since it uses less digits than its factorization.

45642040251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116137641.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 45642040251 in words is "forty-five billion, six hundred forty-two million, forty thousand, two hundred fifty-one".