39977861311 has 2 divisors, whose sum is σ = 39977861312. Its totient is φ = 39977861310.

The previous prime is 39977861291. The next prime is 39977861323. The reversal of 39977861311 is 11316877993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39977861311 - 2¹⁵ = 39977828543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39978861311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19988930655 + 19988930656.

It is an arithmetic number, because the mean of its divisors is an integer number (19988930656).

Almost surely, 2^39977861311 is an apocalyptic number.

39977861311 is a deficient number, since it is larger than the sum of its proper divisors (1).

39977861311 is an equidigital number, since it uses as much as digits as its factorization.

39977861311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 55.

The spelling of 39977861311 in words is "thirty-nine billion, nine hundred seventy-seven million, eight hundred sixty-one thousand, three hundred eleven".