13474537920 has 280 divisors, whose sum is σ = 48065271408. Its totient is φ = 3583180800.

The previous prime is 13474537913. The next prime is 13474538003. The reversal of 13474537920 is 2973547431.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16614315 + ... + 16615125.

Almost surely, 2^13474537920 is an apocalyptic number.

13474537920 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 13474537920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24032635704).

13474537920 is an abundant number, since it is smaller than the sum of its proper divisors (34590733488).

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

13474537920 is an equidigital number, since it uses as much as digits as its factorization.

13474537920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 13474537920 in words is "thirteen billion, four hundred seventy-four million, five hundred thirty-seven thousand, nine hundred twenty".