15768781054 has 16 divisors (see below), whose sum is σ = 25474973328. Its totient is φ = 7277234112.

The previous prime is 15768781051. The next prime is 15768781123. The reversal of 15768781054 is 45018786751.

It is a junction number, because it is equal to n+sod(n) for n = 15768780992 and 15768781010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15768781051) 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, 370249 + ... + 410635.

It is an arithmetic number, because the mean of its divisors is an integer number (1592185833).

Almost surely, 2^15768781054 is an apocalyptic number.

15768781054 is a deficient number, since it is larger than the sum of its proper divisors (9706192274).

15768781054 is a wasteful number, since it uses less digits than its factorization.

15768781054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55419.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 15768781054 in words is "fifteen billion, seven hundred sixty-eight million, seven hundred eighty-one thousand, fifty-four".