2131738343266 has 128 divisors (see below), whose sum is σ = 3845031690240. Its totient is φ = 867449544192.

The previous prime is 2131738343213. The next prime is 2131738343291. The reversal of 2131738343266 is 6623438371312.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1932672471 + ... + 1932673573.

It is an arithmetic number, because the mean of its divisors is an integer number (30039310080).

Almost surely, 2^{2131738343266} is an apocalyptic number.

2131738343266 is a deficient number, since it is larger than the sum of its proper divisors (1713293346974).

2131738343266 is a wasteful number, since it uses less digits than its factorization.

2131738343266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688.

The product of its digits is 2612736, while the sum is 49.

The spelling of 2131738343266 in words is "two trillion, one hundred thirty-one billion, seven hundred thirty-eight million, three hundred forty-three thousand, two hundred sixty-six".