38424167997 has 16 divisors (see below), whose sum is σ = 51312968448. Its totient is φ = 25575773760.

The previous prime is 38424167993. The next prime is 38424168011. The reversal of 38424167997 is 79976142483.

It is not a de Polignac number, because 38424167997 - 2² = 38424167993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38424167997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38424167993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7786743 + ... + 7791675.

It is an arithmetic number, because the mean of its divisors is an integer number (3207060528).

Almost surely, 2^38424167997 is an apocalyptic number.

It is an amenable number.

38424167997 is a deficient number, since it is larger than the sum of its proper divisors (12888800451).

38424167997 is a wasteful number, since it uses less digits than its factorization.

38424167997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500.

The product of its digits is 18289152, while the sum is 60.

The spelling of 38424167997 in words is "thirty-eight billion, four hundred twenty-four million, one hundred sixty-seven thousand, nine hundred ninety-seven".