1493720909136 has 180 divisors, whose sum is σ = 4424915263860. Its totient is φ = 470091340800.

The previous prime is 1493720909033. The next prime is 1493720909141. The reversal of 1493720909136 is 6319090273941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 882284490000 + 611436419136 = 939300^2 + 781944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5542110 + ... + 5805378.

It is an arithmetic number, because the mean of its divisors is an integer number (24582862577).

Almost surely, 2^{1493720909136} is an apocalyptic number.

1493720909136 is a gapful number since it is divisible by the number (16) 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 1493720909136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2212457631930).

1493720909136 is an abundant number, since it is smaller than the sum of its proper divisors (2931194354724).

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

1493720909136 is a wasteful number, since it uses less digits than its factorization.

1493720909136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263386 (or 263346 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 1493720909136 in words is "one trillion, four hundred ninety-three billion, seven hundred twenty million, nine hundred nine thousand, one hundred thirty-six".