38324064423640 has 32 divisors (see below), whose sum is σ = 87690655890000. Its totient is φ = 15069801602944.

The previous prime is 38324064423613. The next prime is 38324064423647. The reversal of 38324064423640 is 4632446042383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38324064423647) 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, 8119502815 + ... + 8119507534.

Almost surely, 2^{38324064423640} is an apocalyptic number.

It is an amenable number.

38324064423640 is an abundant number, since it is smaller than the sum of its proper divisors (49366591466360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38324064423640 is a wasteful number, since it uses less digits than its factorization.

38324064423640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16239010419 (or 16239010415 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 49.

The spelling of 38324064423640 in words is "thirty-eight trillion, three hundred twenty-four billion, sixty-four million, four hundred twenty-three thousand, six hundred forty".