1896370731381 has 32 divisors (see below), whose sum is σ = 3083782717440. Its totient is φ = 1011866155776.

The previous prime is 1896370731373. The next prime is 1896370731401. The reversal of 1896370731381 is 1831370736981.

It is not a de Polignac number, because 1896370731381 - 2³ = 1896370731373 is a prime.

It is a super-2 number, since 2×1896370731381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896370731331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20867901 + ... + 20958578.

It is an arithmetic number, because the mean of its divisors is an integer number (96368209920).

Almost surely, 2^{1896370731381} is an apocalyptic number.

It is an amenable number.

1896370731381 is a deficient number, since it is larger than the sum of its proper divisors (1187411986059).

1896370731381 is a wasteful number, since it uses less digits than its factorization.

1896370731381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41826633.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 1896370731381 in words is "one trillion, eight hundred ninety-six billion, three hundred seventy million, seven hundred thirty-one thousand, three hundred eighty-one".