38540018984 has 16 divisors (see below), whose sum is σ = 72287471520. Its totient is φ = 19263359920.

The previous prime is 38540018981. The next prime is 38540018987. The reversal of 38540018984 is 48981004583.

It is an interprime number because it is at equal distance from previous prime (38540018981) and next prime (38540018987).

It is not an unprimeable number, because it can be changed into a prime (38540018981) 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, 806522 + ... + 852969.

It is an arithmetic number, because the mean of its divisors is an integer number (4517966970).

Almost surely, 2^38540018984 is an apocalyptic number.

It is an amenable number.

38540018984 is a deficient number, since it is larger than the sum of its proper divisors (33747452536).

38540018984 is a wasteful number, since it uses less digits than its factorization.

38540018984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662400 (or 1662396 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 38540018984 in words is "thirty-eight billion, five hundred forty million, eighteen thousand, nine hundred eighty-four".