77500000503 has 16 divisors (see below), whose sum is σ = 121568628960. Its totient is φ = 48627451008.

The previous prime is 77500000493. The next prime is 77500000553. The reversal of 77500000503 is 30500000577.

It is not a de Polignac number, because 77500000503 - 2⁶ = 77500000439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77500000553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84422200 + ... + 84423117.

It is an arithmetic number, because the mean of its divisors is an integer number (7598039310).

Almost surely, 2^77500000503 is an apocalyptic number.

77500000503 is a deficient number, since it is larger than the sum of its proper divisors (44068628457).

77500000503 is a wasteful number, since it uses less digits than its factorization.

77500000503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168845343 (or 168845337 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The spelling of 77500000503 in words is "seventy-seven billion, five hundred million, five hundred three", and thus it is an aban number.