11371277657 has 4 divisors (see below), whose sum is σ = 11372307840. Its totient is φ = 11370247476.

The previous prime is 11371277651. The next prime is 11371277683. The reversal of 11371277657 is 75677217311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75677217311 = 313 ⋅241780247.

It is a cyclic number.

It is not a de Polignac number, because 11371277657 - 2¹² = 11371273561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11371277651) 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, 498353 + ... + 520670.

It is an arithmetic number, because the mean of its divisors is an integer number (2843076960).

Almost surely, 2^11371277657 is an apocalyptic number.

It is an amenable number.

11371277657 is a deficient number, since it is larger than the sum of its proper divisors (1030183).

11371277657 is a wasteful number, since it uses less digits than its factorization.

11371277657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030182.

The product of its digits is 432180, while the sum is 47.

The spelling of 11371277657 in words is "eleven billion, three hundred seventy-one million, two hundred seventy-seven thousand, six hundred fifty-seven".