6639425914503 has 32 divisors (see below), whose sum is σ = 9416756606400. Its totient is φ = 4146615689216.

The previous prime is 6639425914483. The next prime is 6639425914523. The reversal of 6639425914503 is 3054195249366.

It is an interprime number because it is at equal distance from previous prime (6639425914483) and next prime (6639425914523).

It is a cyclic number.

It is not a de Polignac number, because 6639425914503 - 2¹⁶ = 6639425848967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6639425914523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35186533 + ... + 35374721.

It is an arithmetic number, because the mean of its divisors is an integer number (294273643950).

Almost surely, 2^{6639425914503} is an apocalyptic number.

6639425914503 is a deficient number, since it is larger than the sum of its proper divisors (2777330691897).

6639425914503 is a wasteful number, since it uses less digits than its factorization.

6639425914503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191411.

The product of its (nonzero) digits is 20995200, while the sum is 57.

The spelling of 6639425914503 in words is "six trillion, six hundred thirty-nine billion, four hundred twenty-five million, nine hundred fourteen thousand, five hundred three".