39977803079 has 4 divisors (see below), whose sum is σ = 40540870800. Its totient is φ = 39414735360.

The previous prime is 39977803069. The next prime is 39977803087. The reversal of 39977803079 is 97030877993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97030877993 = 7 ⋅13861553999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39977803079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39977803069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281533754 + ... + 281533895.

It is an arithmetic number, because the mean of its divisors is an integer number (10135217700).

Almost surely, 2^39977803079 is an apocalyptic number.

39977803079 is a deficient number, since it is larger than the sum of its proper divisors (563067721).

39977803079 is an equidigital number, since it uses as much as digits as its factorization.

39977803079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563067720.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 39977803079 in words is "thirty-nine billion, nine hundred seventy-seven million, eight hundred three thousand, seventy-nine".