7790138041 has 12 divisors (see below), whose sum is σ = 9210558180. Its totient is φ = 6567795360.

The previous prime is 7790138029. The next prime is 7790138051. The reversal of 7790138041 is 1408310977.

It can be written as a sum of positive squares in 2 ways, for example, as 737665600 + 7052472441 = 27160^2 + 83979^2 .

It is not a de Polignac number, because 7790138041 - 2⁷ = 7790137913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7790137985 and 7790138003.

It is not an unprimeable number, because it can be changed into a prime (7790138051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1300146 + ... + 1306123.

It is an arithmetic number, because the mean of its divisors is an integer number (767546515).

Almost surely, 2^7790138041 is an apocalyptic number.

It is an amenable number.

7790138041 is a deficient number, since it is larger than the sum of its proper divisors (1420420139).

7790138041 is a wasteful number, since it uses less digits than its factorization.

7790138041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606344 (or 2606337 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 7790138041 is about 88261.7586557168. The cubic root of 7790138041 is about 1982.3563112466.

The spelling of 7790138041 in words is "seven billion, seven hundred ninety million, one hundred thirty-eight thousand, forty-one".