13549492134640 has 960 divisors, whose sum is σ = 42819915350016. Its totient is φ = 3891545856000.

The previous prime is 13549492134589. The next prime is 13549492134643. The reversal of 13549492134640 is 4643129494531.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13549492134643) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13672544545 + ... + 13672545535.

Almost surely, 2^{13549492134640} is an apocalyptic number.

13549492134640 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 13549492134640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21409957675008).

13549492134640 is an abundant number, since it is smaller than the sum of its proper divisors (29270423215376).

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

13549492134640 is a wasteful number, since it uses less digits than its factorization.

13549492134640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 13549492134640 in words is "thirteen trillion, five hundred forty-nine billion, four hundred ninety-two million, one hundred thirty-four thousand, six hundred forty".