45471896391 has 16 divisors (see below), whose sum is σ = 60798608640. Its totient is φ = 30229960320.

The previous prime is 45471896387. The next prime is 45471896423. The reversal of 45471896391 is 19369817454.

It is a happy number.

It is not a de Polignac number, because 45471896391 - 2² = 45471896387 is a prime.

It is a super-2 number, since 2×45471896391² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45471896381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3124630 + ... + 3139148.

It is an arithmetic number, because the mean of its divisors is an integer number (3799913040).

Almost surely, 2^45471896391 is an apocalyptic number.

45471896391 is a deficient number, since it is larger than the sum of its proper divisors (15326712249).

45471896391 is a wasteful number, since it uses less digits than its factorization.

45471896391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17366.

The product of its digits is 6531840, while the sum is 57.

The spelling of 45471896391 in words is "forty-five billion, four hundred seventy-one million, eight hundred ninety-six thousand, three hundred ninety-one".