2978518373 has 4 divisors (see below), whose sum is σ = 3020469408. Its totient is φ = 2936567340.

The previous prime is 2978518363. The next prime is 2978518421. The reversal of 2978518373 is 3738158792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2978518373 - 2¹² = 2978514277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978518363) 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, 20975411 + ... + 20975552.

It is an arithmetic number, because the mean of its divisors is an integer number (755117352).

Almost surely, 2^2978518373 is an apocalyptic number.

It is an amenable number.

2978518373 is a deficient number, since it is larger than the sum of its proper divisors (41951035).

2978518373 is an equidigital number, since it uses as much as digits as its factorization.

2978518373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41951034.

The product of its digits is 2540160, while the sum is 53.

The square root of 2978518373 is about 54575.8039152883. The cubic root of 2978518373 is about 1438.7988912088.

The spelling of 2978518373 in words is "two billion, nine hundred seventy-eight million, five hundred eighteen thousand, three hundred seventy-three".