38297473947 has 16 divisors (see below), whose sum is σ = 58056465280. Its totient is φ = 24937889256.

The previous prime is 38297473927. The next prime is 38297473957. The reversal of 38297473947 is 74937479283.

38297473947 is a `hidden beast` number, since 38 + 2 + 97 + 473 + 9 + 47 = 666.

It is not a de Polignac number, because 38297473947 - 2¹⁴ = 38297457563 is a prime.

It is a super-2 number, since 2×38297473947² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38297473927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16492153 + ... + 16494474.

It is an arithmetic number, because the mean of its divisors is an integer number (3628529080).

Almost surely, 2^38297473947 is an apocalyptic number.

38297473947 is a deficient number, since it is larger than the sum of its proper divisors (19758991333).

38297473947 is a wasteful number, since it uses less digits than its factorization.

38297473947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32986679 (or 32986673 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 63.

The spelling of 38297473947 in words is "thirty-eight billion, two hundred ninety-seven million, four hundred seventy-three thousand, nine hundred forty-seven".