40980651839 has 2 divisors, whose sum is σ = 40980651840. Its totient is φ = 40980651838.

The previous prime is 40980651763. The next prime is 40980651857. The reversal of 40980651839 is 93815608904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40980651839 - 2²⁸ = 40712216383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40980651869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20490325919 + 20490325920.

It is an arithmetic number, because the mean of its divisors is an integer number (20490325920).

Almost surely, 2^40980651839 is an apocalyptic number.

40980651839 is a deficient number, since it is larger than the sum of its proper divisors (1).

40980651839 is an equidigital number, since it uses as much as digits as its factorization.

40980651839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

It can be divided in two parts, 4098065 and 1839, that added together give a palindrome (4099904).

The spelling of 40980651839 in words is "forty billion, nine hundred eighty million, six hundred fifty-one thousand, eight hundred thirty-nine".