7131478187707 has 16 divisors (see below), whose sum is σ = 7277849812800. Its totient is φ = 6986088086400.

The previous prime is 7131478187609. The next prime is 7131478187711. The reversal of 7131478187707 is 7077818741317.

It is a cyclic number.

It is not a de Polignac number, because 7131478187707 - 2²³ = 7131469799099 is a prime.

It is a super-2 number, since 2×7131478187707² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7131478287707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27556482 + ... + 27814072.

It is an arithmetic number, because the mean of its divisors is an integer number (454865613300).

Almost surely, 2^{7131478187707} is an apocalyptic number.

7131478187707 is a deficient number, since it is larger than the sum of its proper divisors (146371625093).

7131478187707 is a wasteful number, since it uses less digits than its factorization.

7131478187707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259494.

The product of its (nonzero) digits is 12907776, while the sum is 61.

The spelling of 7131478187707 in words is "seven trillion, one hundred thirty-one billion, four hundred seventy-eight million, one hundred eighty-seven thousand, seven hundred seven".