2981981373 has 48 divisors (see below), whose sum is σ = 4932466560. Its totient is φ = 1564323840.

The previous prime is 2981981341. The next prime is 2981981381. The reversal of 2981981373 is 3731891892.

It is not a de Polignac number, because 2981981373 - 2⁵ = 2981981341 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981981323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597633 + ... + 602601.

It is an arithmetic number, because the mean of its divisors is an integer number (102759720).

Almost surely, 2^2981981373 is an apocalyptic number.

It is an amenable number.

2981981373 is a deficient number, since it is larger than the sum of its proper divisors (1950485187).

2981981373 is a wasteful number, since it uses less digits than its factorization.

2981981373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078 (or 5037 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 2981981373 is about 54607.5212127414. The cubic root of 2981981373 is about 1439.3562858792.

The spelling of 2981981373 in words is "two billion, nine hundred eighty-one million, nine hundred eighty-one thousand, three hundred seventy-three".