38973551685 has 16 divisors (see below), whose sum is σ = 62632391616. Its totient is φ = 20694324608.

The previous prime is 38973551653. The next prime is 38973551699. The reversal of 38973551685 is 58615537983.

It is a cyclic number.

It is not a de Polignac number, because 38973551685 - 2⁵ = 38973551653 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5719584 + ... + 5726393.

It is an arithmetic number, because the mean of its divisors is an integer number (3914524476).

Almost surely, 2^38973551685 is an apocalyptic number.

It is an amenable number.

38973551685 is a deficient number, since it is larger than the sum of its proper divisors (23658839931).

38973551685 is a wasteful number, since it uses less digits than its factorization.

38973551685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446212.

The product of its digits is 27216000, while the sum is 60.

The spelling of 38973551685 in words is "thirty-eight billion, nine hundred seventy-three million, five hundred fifty-one thousand, six hundred eighty-five".