77432312735 has 4 divisors (see below), whose sum is σ = 92918775288. Its totient is φ = 61945850184.

The previous prime is 77432312729. The next prime is 77432312743. The reversal of 77432312735 is 53721323477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53721323477 = 88853 ⋅604609.

It is a cyclic number.

It is not a de Polignac number, because 77432312735 - 2¹⁰ = 77432311711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7743231269 + ... + 7743231278.

It is an arithmetic number, because the mean of its divisors is an integer number (23229693822).

Almost surely, 2^77432312735 is an apocalyptic number.

77432312735 is a deficient number, since it is larger than the sum of its proper divisors (15486462553).

77432312735 is a wasteful number, since it uses less digits than its factorization.

77432312735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15486462552.

The product of its digits is 740880, while the sum is 44.

The spelling of 77432312735 in words is "seventy-seven billion, four hundred thirty-two million, three hundred twelve thousand, seven hundred thirty-five".