40076139947 has 2 divisors, whose sum is σ = 40076139948. Its totient is φ = 40076139946.

The previous prime is 40076139919. The next prime is 40076139959. The reversal of 40076139947 is 74993167004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40076139947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40076139895 and 40076139904.

It is not a weakly prime, because it can be changed into another prime (40076139967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20038069973 + 20038069974.

It is an arithmetic number, because the mean of its divisors is an integer number (20038069974).

Almost surely, 2^40076139947 is an apocalyptic number.

40076139947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40076139947 is an equidigital number, since it uses as much as digits as its factorization.

40076139947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 40076139947 in words is "forty billion, seventy-six million, one hundred thirty-nine thousand, nine hundred forty-seven".