1513803311640 has 64 divisors (see below), whose sum is σ = 5046011042400. Its totient is φ = 403680882816.

The previous prime is 1513803311623. The next prime is 1513803311681. The reversal of 1513803311640 is 461133083151.

1513803311640 is a `hidden beast` number, since 1 + 5 + 1 + 3 + 8 + 0 + 3 + 3 + 1 + 1 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1513803311595 and 1513803311604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700833787 + ... + 700835946.

Almost surely, 2^{1513803311640} is an apocalyptic number.

1513803311640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513803311640 is an abundant number, since it is smaller than the sum of its proper divisors (3532207730760).

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

1513803311640 is a wasteful number, since it uses less digits than its factorization.

1513803311640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401669753 (or 1401669743 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 1513803311640 its reverse (461133083151), we get a palindrome (1974936394791).

The spelling of 1513803311640 in words is "one trillion, five hundred thirteen billion, eight hundred three million, three hundred eleven thousand, six hundred forty".