6149356961 has 4 divisors (see below), whose sum is σ = 6708389424. Its totient is φ = 5590324500.

The previous prime is 6149356957. The next prime is 6149356979. The reversal of 6149356961 is 1696539416.

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.

It is a cyclic number.

It is not a de Polignac number, because 6149356961 - 2² = 6149356957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6149356921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279516215 + ... + 279516236.

It is an arithmetic number, because the mean of its divisors is an integer number (1677097356).

Almost surely, 2^6149356961 is an apocalyptic number.

It is an amenable number.

6149356961 is a deficient number, since it is larger than the sum of its proper divisors (559032463).

6149356961 is a wasteful number, since it uses less digits than its factorization.

6149356961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559032462.

The product of its digits is 1049760, while the sum is 50.

The square root of 6149356961 is about 78417.8357326954. The cubic root of 6149356961 is about 1832.0749415745.

The spelling of 6149356961 in words is "six billion, one hundred forty-nine million, three hundred fifty-six thousand, nine hundred sixty-one".