7149261138499 has 16 divisors (see below), whose sum is σ = 7340376784896. Its totient is φ = 6959778416800.

The previous prime is 7149261138443. The next prime is 7149261138527. The reversal of 7149261138499 is 9948311629417.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7149261138499 - 2³³ = 7140671203907 is a prime.

It is a super-2 number, since 2×7149261138499² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7149261138499.

It is not an unprimeable number, because it can be changed into a prime (7149261132499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97336809 + ... + 97410229.

It is an arithmetic number, because the mean of its divisors is an integer number (458773549056).

Almost surely, 2^{7149261138499} is an apocalyptic number.

7149261138499 is a deficient number, since it is larger than the sum of its proper divisors (191115646397).

7149261138499 is a wasteful number, since it uses less digits than its factorization.

7149261138499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84506.

The product of its digits is 23514624, while the sum is 64.

The spelling of 7149261138499 in words is "seven trillion, one hundred forty-nine billion, two hundred sixty-one million, one hundred thirty-eight thousand, four hundred ninety-nine".