13985709354 has 48 divisors (see below), whose sum is σ = 31911310080. Its totient is φ = 4414590720.

The previous prime is 13985709347. The next prime is 13985709359. The reversal of 13985709354 is 45390758931.

13985709354 is a `hidden beast` number, since 1 + 39 + 8 + 570 + 9 + 35 + 4 = 666.

It is a super-2 number, since 2×13985709354² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13985709354.

It is not an unprimeable number, because it can be changed into a prime (13985709359) 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, 900999 + ... + 916389.

It is an arithmetic number, because the mean of its divisors is an integer number (664818960).

Almost surely, 2^13985709354 is an apocalyptic number.

13985709354 is an abundant number, since it is smaller than the sum of its proper divisors (17925600726).

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

13985709354 is a wasteful number, since it uses less digits than its factorization.

13985709354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18075 (or 18072 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 13985709354 in words is "thirteen billion, nine hundred eighty-five million, seven hundred nine thousand, three hundred fifty-four".