7881401837 has 8 divisors (see below), whose sum is σ = 8298111360. Its totient is φ = 7464882240.

The previous prime is 7881401819. The next prime is 7881401893. The reversal of 7881401837 is 7381041887.

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 7881401837 - 2²⁶ = 7814292973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7881401791 and 7881401800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881400837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42053 + ... + 132405.

It is an arithmetic number, because the mean of its divisors is an integer number (1037263920).

Almost surely, 2^7881401837 is an apocalyptic number.

It is an amenable number.

7881401837 is a deficient number, since it is larger than the sum of its proper divisors (416709523).

7881401837 is a wasteful number, since it uses less digits than its factorization.

7881401837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94963.

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 7881401837 is about 88777.2596839979. The cubic root of 7881401837 is about 1990.0675748709.

The spelling of 7881401837 in words is "seven billion, eight hundred eighty-one million, four hundred one thousand, eight hundred thirty-seven".