44777963987 has 2 divisors, whose sum is σ = 44777963988. Its totient is φ = 44777963986.

The previous prime is 44777963953. The next prime is 44777964041. The reversal of 44777963987 is 78936977744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44777963987 - 2³² = 40482996691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44777963987.

It is not a weakly prime, because it can be changed into another prime (44777963927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22388981993 + 22388981994.

It is an arithmetic number, because the mean of its divisors is an integer number (22388981994).

Almost surely, 2^44777963987 is an apocalyptic number.

44777963987 is a deficient number, since it is larger than the sum of its proper divisors (1).

44777963987 is an equidigital number, since it uses as much as digits as its factorization.

44777963987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448084224, while the sum is 71.

The spelling of 44777963987 in words is "forty-four billion, seven hundred seventy-seven million, nine hundred sixty-three thousand, nine hundred eighty-seven".