2131377645842 has 8 divisors (see below), whose sum is σ = 3199222283376. Its totient is φ = 1064970218052.

The previous prime is 2131377645841. The next prime is 2131377645847. The reversal of 2131377645842 is 2485467731312.

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 (2131377645841) 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, 359298728 + ... + 359304659.

It is an arithmetic number, because the mean of its divisors is an integer number (399902785422).

Almost surely, 2^{2131377645842} is an apocalyptic number.

2131377645842 is a deficient number, since it is larger than the sum of its proper divisors (1067844637534).

2131377645842 is a wasteful number, since it uses less digits than its factorization.

2131377645842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718604872.

The product of its digits is 6773760, while the sum is 53.

The spelling of 2131377645842 in words is "two trillion, one hundred thirty-one billion, three hundred seventy-seven million, six hundred forty-five thousand, eight hundred forty-two".