4271542309978 has 4 divisors (see below), whose sum is σ = 6407313464970. Its totient is φ = 2135771154988.

The previous prime is 4271542309913. The next prime is 4271542309981. The reversal of 4271542309978 is 8799032451724.

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

It can be written as a sum of positive squares in only one way, i.e., 4117786568289 + 153755741689 = 2029233^2 + 392117^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067885577493 + ... + 1067885577496.

Almost surely, 2^{4271542309978} is an apocalyptic number.

4271542309978 is a deficient number, since it is larger than the sum of its proper divisors (2135771154992).

4271542309978 is a wasteful number, since it uses less digits than its factorization.

4271542309978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135771154991.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 4271542309978 in words is "four trillion, two hundred seventy-one billion, five hundred forty-two million, three hundred nine thousand, nine hundred seventy-eight".