131888257642 has 8 divisors (see below), whose sum is σ = 197837841600. Its totient is φ = 65942310444.

The previous prime is 131888257609. The next prime is 131888257643. The reversal of 131888257642 is 246752888131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131888257643) 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, 816642 + ... + 964717.

It is an arithmetic number, because the mean of its divisors is an integer number (24729730200).

Almost surely, 2^131888257642 is an apocalyptic number.

131888257642 is a deficient number, since it is larger than the sum of its proper divisors (65949583958).

131888257642 is a wasteful number, since it uses less digits than its factorization.

131888257642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818380.

The product of its digits is 5160960, while the sum is 55.

The spelling of 131888257642 in words is "one hundred thirty-one billion, eight hundred eighty-eight million, two hundred fifty-seven thousand, six hundred forty-two".