15451364394240 has 576 divisors, whose sum is σ = 54284506214400. Its totient is φ = 3731566067712.

The previous prime is 15451364394157. The next prime is 15451364394247. The reversal of 15451364394240 is 4249346315451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15451364394247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147399766 + ... + 147504554.

It is an arithmetic number, because the mean of its divisors is an integer number (94243934400).

Almost surely, 2^{15451364394240} is an apocalyptic number.

15451364394240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15451364394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27142253107200).

15451364394240 is an abundant number, since it is smaller than the sum of its proper divisors (38833141820160).

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

15451364394240 is a wasteful number, since it uses less digits than its factorization.

15451364394240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104922 (or 104908 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 15451364394240 in words is "fifteen trillion, four hundred fifty-one billion, three hundred sixty-four million, three hundred ninety-four thousand, two hundred forty".