6420117038 has 4 divisors (see below), whose sum is σ = 9630175560. Its totient is φ = 3210058518.

The previous prime is 6420117017. The next prime is 6420117047. The reversal of 6420117038 is 8307110246.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6420116995 and 6420117013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605029258 + ... + 1605029261.

It is an arithmetic number, because the mean of its divisors is an integer number (2407543890).

Almost surely, 2^6420117038 is an apocalyptic number.

6420117038 is a deficient number, since it is larger than the sum of its proper divisors (3210058522).

6420117038 is a wasteful number, since it uses less digits than its factorization.

6420117038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210058521.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 6420117038 is about 80125.6328399346. The cubic root of 6420117038 is about 1858.5788116660.

The spelling of 6420117038 in words is "six billion, four hundred twenty million, one hundred seventeen thousand, thirty-eight".