38726551247 has 4 divisors (see below), whose sum is σ = 38728700880. Its totient is φ = 38724401616.

The previous prime is 38726551223. The next prime is 38726551261. The reversal of 38726551247 is 74215562783.

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 38726551247 - 2²⁴ = 38709774031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38726551195 and 38726551204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38726551267) 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, 1047563 + ... + 1083900.

It is an arithmetic number, because the mean of its divisors is an integer number (9682175220).

Almost surely, 2^38726551247 is an apocalyptic number.

38726551247 is a deficient number, since it is larger than the sum of its proper divisors (2149633).

38726551247 is a wasteful number, since it uses less digits than its factorization.

38726551247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149632.

The product of its digits is 2822400, while the sum is 50.

The spelling of 38726551247 in words is "thirty-eight billion, seven hundred twenty-six million, five hundred fifty-one thousand, two hundred forty-seven".