16972743487 has 32 divisors (see below), whose sum is σ = 20657894400. Its totient is φ = 13631701248.

The previous prime is 16972743461. The next prime is 16972743503. The reversal of 16972743487 is 78434727961.

It is a cyclic number.

It is not a de Polignac number, because 16972743487 - 2¹⁵ = 16972710719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16972743427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1556428 + ... + 1567294.

It is an arithmetic number, because the mean of its divisors is an integer number (645559200).

Almost surely, 2^16972743487 is an apocalyptic number.

16972743487 is a deficient number, since it is larger than the sum of its proper divisors (3685150913).

16972743487 is a wasteful number, since it uses less digits than its factorization.

16972743487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11095.

The product of its digits is 14224896, while the sum is 58.

The spelling of 16972743487 in words is "sixteen billion, nine hundred seventy-two million, seven hundred forty-three thousand, four hundred eighty-seven".