15902791854 has 16 divisors (see below), whose sum is σ = 31868076240. Its totient is φ = 5290515200.

The previous prime is 15902791841. The next prime is 15902791871. The reversal of 15902791854 is 45819720951.

It is a junction number, because it is equal to n+sod(n) for n = 15902791797 and 15902791806.

It is a congruent number.

It is an unprimeable number.

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, 2600547 + ... + 2606654.

It is an arithmetic number, because the mean of its divisors is an integer number (1991754765).

Almost surely, 2^15902791854 is an apocalyptic number.

15902791854 is an abundant number, since it is smaller than the sum of its proper divisors (15965284386).

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

15902791854 is a wasteful number, since it uses less digits than its factorization.

15902791854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207715.

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 15902791854 in words is "fifteen billion, nine hundred two million, seven hundred ninety-one thousand, eight hundred fifty-four".