6398412421501 has 4 divisors (see below), whose sum is σ = 6398429353600. Its totient is φ = 6398395489404.

The previous prime is 6398412421487. The next prime is 6398412421529. The reversal of 6398412421501 is 1051242148936.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6398412421501 - 2¹¹ = 6398412419453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398412421601) 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, 7885971 + ... + 8659408.

It is an arithmetic number, because the mean of its divisors is an integer number (1599607338400).

Almost surely, 2^{6398412421501} is an apocalyptic number.

It is an amenable number.

6398412421501 is a deficient number, since it is larger than the sum of its proper divisors (16932099).

6398412421501 is a wasteful number, since it uses less digits than its factorization.

6398412421501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16932098.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 6398412421501 in words is "six trillion, three hundred ninety-eight billion, four hundred twelve million, four hundred twenty-one thousand, five hundred one".