2940878769681 has 8 divisors (see below), whose sum is σ = 3959995175424. Its totient is φ = 1941174105200.

The previous prime is 2940878769649. The next prime is 2940878769691. The reversal of 2940878769681 is 1869678780492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2940878769681 - 2⁵ = 2940878769649 is a prime.

It is a super-2 number, since 2×2940878769681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2940878769601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4852934961 + ... + 4852935566.

It is an arithmetic number, because the mean of its divisors is an integer number (494999396928).

Almost surely, 2^{2940878769681} is an apocalyptic number.

It is an amenable number.

2940878769681 is a deficient number, since it is larger than the sum of its proper divisors (1019116405743).

2940878769681 is a wasteful number, since it uses less digits than its factorization.

2940878769681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705870631.

The product of its (nonzero) digits is 585252864, while the sum is 75.

The spelling of 2940878769681 in words is "two trillion, nine hundred forty billion, eight hundred seventy-eight million, seven hundred sixty-nine thousand, six hundred eighty-one".