45246421331440 has 80 divisors (see below), whose sum is σ = 120605468202432. Its totient is φ = 15464121587712.

The previous prime is 45246421331389. The next prime is 45246421331561. The reversal of 45246421331440 is 4413312464254.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127262829 + ... + 127617868.

Almost surely, 2^{45246421331440} is an apocalyptic number.

45246421331440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45246421331440 is an abundant number, since it is smaller than the sum of its proper divisors (75359046870992).

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

45246421331440 is a wasteful number, since it uses less digits than its factorization.

45246421331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254881034 (or 254881028 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 45246421331440 its reverse (4413312464254), we get a palindrome (49659733795694).

The spelling of 45246421331440 in words is "forty-five trillion, two hundred forty-six billion, four hundred twenty-one million, three hundred thirty-one thousand, four hundred forty".