6742156461 has 4 divisors (see below), whose sum is σ = 8989541952. Its totient is φ = 4494770972.

The previous prime is 6742156453. The next prime is 6742156471. The reversal of 6742156461 is 1646512476.

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 6742156461 - 2³ = 6742156453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742156471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123692741 + ... + 1123692746.

It is an arithmetic number, because the mean of its divisors is an integer number (2247385488).

Almost surely, 2^6742156461 is an apocalyptic number.

It is an amenable number.

6742156461 is a deficient number, since it is larger than the sum of its proper divisors (2247385491).

6742156461 is a wasteful number, since it uses less digits than its factorization.

6742156461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247385490.

The product of its digits is 241920, while the sum is 42.

The square root of 6742156461 is about 82110.6354926084. The cubic root of 6742156461 is about 1889.1492733531.

The spelling of 6742156461 in words is "six billion, seven hundred forty-two million, one hundred fifty-six thousand, four hundred sixty-one".