38746287128231 has 4 divisors (see below), whose sum is σ = 38746305945000. Its totient is φ = 38746268311464.

The previous prime is 38746287128203. The next prime is 38746287128243. The reversal of 38746287128231 is 13282178264783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38746287128231 - 2²² = 38746282933927 is a prime.

It is a super-2 number, since 2×38746287128231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38746287128291) 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, 5878136 + ... + 10585133.

It is an arithmetic number, because the mean of its divisors is an integer number (9686576486250).

Almost surely, 2^{38746287128231} is an apocalyptic number.

38746287128231 is a deficient number, since it is larger than the sum of its proper divisors (18816769).

38746287128231 is a wasteful number, since it uses less digits than its factorization.

38746287128231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18816768.

The product of its digits is 43352064, while the sum is 62.

The spelling of 38746287128231 in words is "thirty-eight trillion, seven hundred forty-six billion, two hundred eighty-seven million, one hundred twenty-eight thousand, two hundred thirty-one".