13861398740 has 24 divisors (see below), whose sum is σ = 33267357312. Its totient is φ = 4752479520.

The previous prime is 13861398731. The next prime is 13861398769. The reversal of 13861398740 is 4789316831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49504856 + ... + 49505135.

It is an arithmetic number, because the mean of its divisors is an integer number (1386139888).

Almost surely, 2^13861398740 is an apocalyptic number.

13861398740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13861398740 is an abundant number, since it is smaller than the sum of its proper divisors (19405958572).

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

13861398740 is a wasteful number, since it uses less digits than its factorization.

13861398740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99010007 (or 99010005 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 13861398740 in words is "thirteen billion, eight hundred sixty-one million, three hundred ninety-eight thousand, seven hundred forty".