7157678767516 has 12 divisors (see below), whose sum is σ = 12527109551880. Its totient is φ = 3578504609840.

The previous prime is 7157678767501. The next prime is 7157678767607. The reversal of 7157678767516 is 6157678767517.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83645371 + ... + 83730898.

It is an arithmetic number, because the mean of its divisors is an integer number (1043925795990).

Almost surely, 2^{7157678767516} is an apocalyptic number.

It is an amenable number.

7157678767516 is a deficient number, since it is larger than the sum of its proper divisors (5369430784364).

7157678767516 is a wasteful number, since it uses less digits than its factorization.

7157678767516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167386964 (or 167386962 counting only the distinct ones).

The product of its digits is 726062400, while the sum is 73.

Subtracting from 7157678767516 its reverse (6157678767517), we obtain a palindrome (999999999999).

The spelling of 7157678767516 in words is "seven trillion, one hundred fifty-seven billion, six hundred seventy-eight million, seven hundred sixty-seven thousand, five hundred sixteen".