38451063397 has 4 divisors (see below), whose sum is σ = 38453992416. Its totient is φ = 38448134380.

The previous prime is 38451063367. The next prime is 38451063419. The reversal of 38451063397 is 79336015483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38451063397 is a prime.

It is a super-2 number, since 2×38451063397² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38451063397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38451063307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444729 + ... + 1471102.

It is an arithmetic number, because the mean of its divisors is an integer number (9613498104).

Almost surely, 2^38451063397 is an apocalyptic number.

It is an amenable number.

38451063397 is a deficient number, since it is larger than the sum of its proper divisors (2929019).

38451063397 is a wasteful number, since it uses less digits than its factorization.

38451063397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929018.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 38451063397 in words is "thirty-eight billion, four hundred fifty-one million, sixty-three thousand, three hundred ninety-seven".