40130040479 has 2 divisors, whose sum is σ = 40130040480. Its totient is φ = 40130040478.

The previous prime is 40130040469. The next prime is 40130040521. The reversal of 40130040479 is 97404003104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40130040479 - 2¹⁶ = 40129974943 is a prime.

It is a super-2 number, since 2×40130040479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40130040439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065020239 + 20065020240.

It is an arithmetic number, because the mean of its divisors is an integer number (20065020240).

Almost surely, 2^40130040479 is an apocalyptic number.

40130040479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40130040479 is an equidigital number, since it uses as much as digits as its factorization.

40130040479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 40130040479 in words is "forty billion, one hundred thirty million, forty thousand, four hundred seventy-nine".