45442431512 has 32 divisors (see below), whose sum is σ = 85446900000. Its totient is φ = 22656657408.

The previous prime is 45442431491. The next prime is 45442431533. The reversal of 45442431512 is 21513424454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45442431491) and next prime (45442431533).

It is a super-2 number, since 2×45442431512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8291189 + ... + 8296667.

It is an arithmetic number, because the mean of its divisors is an integer number (2670215625).

Almost surely, 2^45442431512 is an apocalyptic number.

It is an amenable number.

45442431512 is a deficient number, since it is larger than the sum of its proper divisors (40004468488).

45442431512 is a wasteful number, since it uses less digits than its factorization.

45442431512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243 (or 8239 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 45442431512 its reverse (21513424454), we get a palindrome (66955855966).

The spelling of 45442431512 in words is "forty-five billion, four hundred forty-two million, four hundred thirty-one thousand, five hundred twelve".