67542254051 has 4 divisors (see below), whose sum is σ = 68356016232. Its totient is φ = 66728491872.

The previous prime is 67542254041. The next prime is 67542254057. The reversal of 67542254051 is 15045224576.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67542254051 - 2²⁶ = 67475145187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67542254057) 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, 406880966 + ... + 406881131.

It is an arithmetic number, because the mean of its divisors is an integer number (17089004058).

Almost surely, 2^67542254051 is an apocalyptic number.

67542254051 is a deficient number, since it is larger than the sum of its proper divisors (813762181).

67542254051 is an equidigital number, since it uses as much as digits as its factorization.

67542254051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813762180.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 67542254051 in words is "sixty-seven billion, five hundred forty-two million, two hundred fifty-four thousand, fifty-one".