78235465055 has 16 divisors (see below), whose sum is σ = 102423823488. Its totient is φ = 56894916000.

The previous prime is 78235465051. The next prime is 78235465069. The reversal of 78235465055 is 55056453287.

It is not a de Polignac number, because 78235465055 - 2² = 78235465051 is a prime.

It is a super-2 number, since 2×78235465055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78235464994 and 78235465012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78235465051) 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, 1087760 + ... + 1157450.

It is an arithmetic number, because the mean of its divisors is an integer number (6401488968).

Almost surely, 2^78235465055 is an apocalyptic number.

78235465055 is a deficient number, since it is larger than the sum of its proper divisors (24188358433).

78235465055 is a wasteful number, since it uses less digits than its factorization.

78235465055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90118.

The product of its (nonzero) digits is 5040000, while the sum is 50.

The spelling of 78235465055 in words is "seventy-eight billion, two hundred thirty-five million, four hundred sixty-five thousand, fifty-five".