45551423442 has 32 divisors (see below), whose sum is σ = 104133445632. Its totient is φ = 13012704144.

The previous prime is 45551423429. The next prime is 45551423459. The reversal of 45551423442 is 24432415554.

It is a self number, because there is not a number n which added to its sum of digits gives 45551423442.

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 15 ways as a sum of consecutive naturals, for example, 207303 + ... + 366165.

It is an arithmetic number, because the mean of its divisors is an integer number (3254170176).

Almost surely, 2^45551423442 is an apocalyptic number.

45551423442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45551423442 is an abundant number, since it is smaller than the sum of its proper divisors (58582022190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45551423442 is a wasteful number, since it uses less digits than its factorization.

45551423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165702.

The product of its digits is 384000, while the sum is 39.

Adding to 45551423442 its reverse (24432415554), we get a palindrome (69983838996).

The spelling of 45551423442 in words is "forty-five billion, five hundred fifty-one million, four hundred twenty-three thousand, four hundred forty-two".