6893400540531 has 16 divisors (see below), whose sum is σ = 9732757561344. Its totient is φ = 4324871827584.

The previous prime is 6893400540487. The next prime is 6893400540557. The reversal of 6893400540531 is 1350450043986.

It is not a de Polignac number, because 6893400540531 - 2¹⁴ = 6893400524147 is a prime.

It is a super-2 number, since 2×6893400540531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6893400540571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5677315 + ... + 6783708.

It is an arithmetic number, because the mean of its divisors is an integer number (608297347584).

Almost surely, 2^{6893400540531} is an apocalyptic number.

6893400540531 is a deficient number, since it is larger than the sum of its proper divisors (2839357020813).

6893400540531 is a wasteful number, since it uses less digits than its factorization.

6893400540531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471890.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 6893400540531 in words is "six trillion, eight hundred ninety-three billion, four hundred million, five hundred forty thousand, five hundred thirty-one".