15954346461 has 8 divisors (see below), whose sum is σ = 21847393504. Its totient is φ = 10348765200.

The previous prime is 15954346453. The next prime is 15954346481. The reversal of 15954346461 is 16464345951.

It is a happy number.

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

It is not a de Polignac number, because 15954346461 - 2³ = 15954346453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15954346461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15954346411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71866315 + ... + 71866536.

It is an arithmetic number, because the mean of its divisors is an integer number (2730924188).

Almost surely, 2^15954346461 is an apocalyptic number.

It is an amenable number.

15954346461 is a deficient number, since it is larger than the sum of its proper divisors (5893047043).

15954346461 is a wasteful number, since it uses less digits than its factorization.

15954346461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143732891.

The product of its digits is 1555200, while the sum is 48.

The spelling of 15954346461 in words is "fifteen billion, nine hundred fifty-four million, three hundred forty-six thousand, four hundred sixty-one".