1353172702540 has 72 divisors (see below), whose sum is σ = 2942144765280. Its totient is φ = 522763683840.

The previous prime is 1353172702439. The next prime is 1353172702591. The reversal of 1353172702540 is 452072713531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1353172702493 and 1353172702502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9597676 + ... + 9737644.

It is an arithmetic number, because the mean of its divisors is an integer number (40863121740).

Almost surely, 2^{1353172702540} is an apocalyptic number.

1353172702540 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 1353172702540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471072382640).

1353172702540 is an abundant number, since it is smaller than the sum of its proper divisors (1588972062740).

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

1353172702540 is a wasteful number, since it uses less digits than its factorization.

1353172702540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140543 (or 140510 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 1353172702540 in words is "one trillion, three hundred fifty-three billion, one hundred seventy-two million, seven hundred two thousand, five hundred forty".