6381979482501 has 128 divisors (see below), whose sum is σ = 11089496678400. Its totient is φ = 3552044520960.

The previous prime is 6381979482499. The next prime is 6381979482509. The reversal of 6381979482501 is 1052849791836.

6381979482501 is a `hidden beast` number, since 6 + 3 + 8 + 19 + 79 + 48 + 2 + 501 = 666.

It is not a de Polignac number, because 6381979482501 - 2¹ = 6381979482499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381979482509) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1624324705 + ... + 1624328633.

It is an arithmetic number, because the mean of its divisors is an integer number (86636692800).

It is a 1-persistent number, because it is pandigital, but 2⋅6381979482501 = 12763958965002 is not.

Almost surely, 2^{6381979482501} is an apocalyptic number.

It is an amenable number.

6381979482501 is a deficient number, since it is larger than the sum of its proper divisors (4707517195899).

6381979482501 is a wasteful number, since it uses less digits than its factorization.

6381979482501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136 (or 5130 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

Adding to 6381979482501 its sum of digits (63), we get a square (6381979482564 = 2526258²).

The spelling of 6381979482501 in words is "six trillion, three hundred eighty-one billion, nine hundred seventy-nine million, four hundred eighty-two thousand, five hundred one".