756516396149 has 4 divisors (see below), whose sum is σ = 782603168460. Its totient is φ = 730429623840.

The previous prime is 756516396107. The next prime is 756516396157. The reversal of 756516396149 is 941693615657.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 535813752049 + 220702644100 = 731993^2 + 469790^2 .

It is a cyclic number.

It is not a de Polignac number, because 756516396149 - 2⁸ = 756516395893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 756516396091 and 756516396100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756516396749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13043386112 + ... + 13043386169.

It is an arithmetic number, because the mean of its divisors is an integer number (195650792115).

Almost surely, 2^756516396149 is an apocalyptic number.

It is an amenable number.

756516396149 is a deficient number, since it is larger than the sum of its proper divisors (26086772311).

756516396149 is a wasteful number, since it uses less digits than its factorization.

756516396149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26086772310.

The product of its digits is 36741600, while the sum is 62.

The spelling of 756516396149 in words is "seven hundred fifty-six billion, five hundred sixteen million, three hundred ninety-six thousand, one hundred forty-nine".