45342121605 has 32 divisors (see below), whose sum is σ = 81072931968. Its totient is φ = 21447859200.

The previous prime is 45342121537. The next prime is 45342121631. The reversal of 45342121605 is 50612124354.

It is not a de Polignac number, because 45342121605 - 2¹⁸ = 45341859461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3344464 + ... + 3357993.

It is an arithmetic number, because the mean of its divisors is an integer number (2533529124).

Almost surely, 2^45342121605 is an apocalyptic number.

It is an amenable number.

45342121605 is a deficient number, since it is larger than the sum of its proper divisors (35730810363).

45342121605 is a wasteful number, since it uses less digits than its factorization.

45342121605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702517.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 45342121605 its reverse (50612124354), we get a palindrome (95954245959).

The spelling of 45342121605 in words is "forty-five billion, three hundred forty-two million, one hundred twenty-one thousand, six hundred five".