77445263023075 has 12 divisors (see below), whose sum is σ = 96621280301848. Its totient is φ = 61576110964800.

The previous prime is 77445263023057. The next prime is 77445263023133. The reversal of 77445263023075 is 57032036254477.

It is a happy number.

It is not a de Polignac number, because 77445263023075 - 2¹³ = 77445263014883 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9502482186 + ... + 9502490335.

Almost surely, 2^{77445263023075} is an apocalyptic number.

77445263023075 is a deficient number, since it is larger than the sum of its proper divisors (19176017278773).

77445263023075 is a wasteful number, since it uses less digits than its factorization.

77445263023075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19004972694 (or 19004972689 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 55.

The spelling of 77445263023075 in words is "seventy-seven trillion, four hundred forty-five billion, two hundred sixty-three million, twenty-three thousand, seventy-five".