13749145398 has 48 divisors (see below), whose sum is σ = 30830323680. Its totient is φ = 4423106688.

The previous prime is 13749145391. The next prime is 13749145463. The reversal of 13749145398 is 89354194731.

13749145398 is a `hidden beast` number, since 13 + 7 + 4 + 91 + 4 + 539 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749145391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1696111 + ... + 1704197.

It is an arithmetic number, because the mean of its divisors is an integer number (642298410).

Almost surely, 2^13749145398 is an apocalyptic number.

13749145398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13749145398 is an abundant number, since it is smaller than the sum of its proper divisors (17081178282).

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

13749145398 is a wasteful number, since it uses less digits than its factorization.

13749145398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381 (or 11378 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 13749145398 in words is "thirteen billion, seven hundred forty-nine million, one hundred forty-five thousand, three hundred ninety-eight".