7131138540407 has 48 divisors (see below), whose sum is σ = 8692858352640. Its totient is φ = 5729372600832.

The previous prime is 7131138540403. The next prime is 7131138540467. The reversal of 7131138540407 is 7040458311317.

It is not a de Polignac number, because 7131138540407 - 2² = 7131138540403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131138540401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 883765769 + ... + 883773837.

It is an arithmetic number, because the mean of its divisors is an integer number (181101215680).

Almost surely, 2^{7131138540407} is an apocalyptic number.

7131138540407 is a deficient number, since it is larger than the sum of its proper divisors (1561719812233).

7131138540407 is a wasteful number, since it uses less digits than its factorization.

7131138540407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840 (or 9823 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 7131138540407 in words is "seven trillion, one hundred thirty-one billion, one hundred thirty-eight million, five hundred forty thousand, four hundred seven".