38685207974 has 16 divisors (see below), whose sum is σ = 66514295328. Its totient is φ = 16530175872.

The previous prime is 38685207971. The next prime is 38685207991. The reversal of 38685207974 is 47970258683.

It is a happy number.

It is a super-3 number, since 3×38685207974³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38685207971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4095029 + ... + 4104464.

It is an arithmetic number, because the mean of its divisors is an integer number (4157143458).

Almost surely, 2^38685207974 is an apocalyptic number.

38685207974 is a deficient number, since it is larger than the sum of its proper divisors (27829087354).

38685207974 is a wasteful number, since it uses less digits than its factorization.

38685207974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199839.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 38685207974 in words is "thirty-eight billion, six hundred eighty-five million, two hundred seven thousand, nine hundred seventy-four".