2071393470981 has 24 divisors (see below), whose sum is σ = 3266134828320. Its totient is φ = 1308248505072.

The previous prime is 2071393470967. The next prime is 2071393470989. The reversal of 2071393470981 is 1890743931702.

2071393470981 is a `hidden beast` number, since 2 + 0 + 7 + 1 + 3 + 93 + 470 + 9 + 81 = 666.

It is not a de Polignac number, because 2071393470981 - 2¹⁷ = 2071393339909 is a prime.

It is a super-2 number, since 2×2071393470981² (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 (2071393470989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224317830 + ... + 224327063.

It is an arithmetic number, because the mean of its divisors is an integer number (136088951180).

Almost surely, 2^{2071393470981} is an apocalyptic number.

It is an amenable number.

2071393470981 is a deficient number, since it is larger than the sum of its proper divisors (1194741357339).

2071393470981 is an equidigital number, since it uses as much as digits as its factorization.

2071393470981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448644927 (or 448644915 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 2071393470981 in words is "two trillion, seventy-one billion, three hundred ninety-three million, four hundred seventy thousand, nine hundred eighty-one".