78033767775 has 12 divisors (see below), whose sum is σ = 129015829512. Its totient is φ = 41618009440.

The previous prime is 78033767741. The next prime is 78033767783. The reversal of 78033767775 is 57776733087.

It is not a de Polignac number, because 78033767775 - 2⁶ = 78033767711 is a prime.

It is a congruent 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, 520225044 + ... + 520225193.

It is an arithmetic number, because the mean of its divisors is an integer number (10751319126).

Almost surely, 2^78033767775 is an apocalyptic number.

78033767775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78033767775 is a deficient number, since it is larger than the sum of its proper divisors (50982061737).

78033767775 is a wasteful number, since it uses less digits than its factorization.

78033767775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040450250 (or 1040450245 counting only the distinct ones).

The product of its (nonzero) digits is 36303120, while the sum is 60.

The spelling of 78033767775 in words is "seventy-eight billion, thirty-three million, seven hundred sixty-seven thousand, seven hundred seventy-five".