16278902623 has 2 divisors, whose sum is σ = 16278902624. Its totient is φ = 16278902622.

The previous prime is 16278902597. The next prime is 16278902641. The reversal of 16278902623 is 32620987261.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16278902623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16278902663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8139451311 + 8139451312.

It is an arithmetic number, because the mean of its divisors is an integer number (8139451312).

Almost surely, 2^16278902623 is an apocalyptic number.

16278902623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16278902623 is an equidigital number, since it uses as much as digits as its factorization.

16278902623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 16278902623 in words is "sixteen billion, two hundred seventy-eight million, nine hundred two thousand, six hundred twenty-three".