11647774071 has 12 divisors (see below), whose sum is σ = 16825667040. Its totient is φ = 7764672960.

The previous prime is 11647774067. The next prime is 11647774093. The reversal of 11647774071 is 17047774611.

It is not a de Polignac number, because 11647774071 - 2² = 11647774067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11647774051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146466 + ... + 211536.

It is an arithmetic number, because the mean of its divisors is an integer number (1402138920).

Almost surely, 2^11647774071 is an apocalyptic number.

11647774071 is a deficient number, since it is larger than the sum of its proper divisors (5177892969).

11647774071 is a wasteful number, since it uses less digits than its factorization.

11647774071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84966 (or 84963 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 11647774071 in words is "eleven billion, six hundred forty-seven million, seven hundred seventy-four thousand, seventy-one".