15400847085547 has 8 divisors (see below), whose sum is σ = 19201056106752. Its totient is φ = 12000660066600.

The previous prime is 15400847085539. The next prime is 15400847085557. The reversal of 15400847085547 is 74558074800451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15400847085547 - 2³ = 15400847085539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15400847085491 and 15400847085500.

It is not an unprimeable number, because it can be changed into a prime (15400847085557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100005500479 + ... + 100005500632.

It is an arithmetic number, because the mean of its divisors is an integer number (2400132013344).

Almost surely, 2^{15400847085547} is an apocalyptic number.

15400847085547 is a deficient number, since it is larger than the sum of its proper divisors (3800209021205).

15400847085547 is a wasteful number, since it uses less digits than its factorization.

15400847085547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200011001129.

The product of its (nonzero) digits is 25088000, while the sum is 58.

The spelling of 15400847085547 in words is "fifteen trillion, four hundred billion, eight hundred forty-seven million, eighty-five thousand, five hundred forty-seven".