2451533405140 has 24 divisors (see below), whose sum is σ = 5325744984840. Its totient is φ = 946799107968.

The previous prime is 2451533405131. The next prime is 2451533405143. The reversal of 2451533405140 is 415043351542.

It can be written as a sum of positive squares in 4 ways, for example, as 19574248464 + 2431959156676 = 139908^2 + 1559474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2451533405140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451533405143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113390287 + ... + 2113391446.

It is an arithmetic number, because the mean of its divisors is an integer number (221906041035).

Almost surely, 2^{2451533405140} is an apocalyptic number.

2451533405140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451533405140 is an abundant number, since it is smaller than the sum of its proper divisors (2874211579700).

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

2451533405140 is a wasteful number, since it uses less digits than its factorization.

2451533405140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226781771 (or 4226781769 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 2451533405140 its reverse (415043351542), we get a palindrome (2866576756682).

The spelling of 2451533405140 in words is "two trillion, four hundred fifty-one billion, five hundred thirty-three million, four hundred five thousand, one hundred forty".