7148742955771 has 8 divisors (see below), whose sum is σ = 7168993723584. Its totient is φ = 7128519390720.

The previous prime is 7148742955747. The next prime is 7148742955831. The reversal of 7148742955771 is 1775592478417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7148742955771 is a prime.

It is a super-2 number, since 2×7148742955771² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7148742955697 and 7148742955706.

It is not an unprimeable number, because it can be changed into a prime (7148742905771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6274300 + ... + 7325593.

It is an arithmetic number, because the mean of its divisors is an integer number (896124215448).

Almost surely, 2^{7148742955771} is an apocalyptic number.

7148742955771 is a deficient number, since it is larger than the sum of its proper divisors (20250767813).

7148742955771 is a wasteful number, since it uses less digits than its factorization.

7148742955771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601381.

The product of its digits is 138297600, while the sum is 67.

The spelling of 7148742955771 in words is "seven trillion, one hundred forty-eight billion, seven hundred forty-two million, nine hundred fifty-five thousand, seven hundred seventy-one".