78457059045 has 12 divisors (see below), whose sum is σ = 135992235756. Its totient is φ = 41843764800.

The previous prime is 78457059013. The next prime is 78457059047. The reversal of 78457059045 is 54095075487.

78457059045 is a `hidden beast` number, since 7 + 8 + 4 + 5 + 7 + 0 + 590 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35046086436 + 43410972609 = 187206^2 + 208353^2 .

It is not a de Polignac number, because 78457059045 - 2⁵ = 78457059013 is a prime.

It is a super-2 number, since 2×78457059045² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78457058982 and 78457059000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78457059047) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 871745056 + ... + 871745145.

It is an arithmetic number, because the mean of its divisors is an integer number (11332686313).

Almost surely, 2^78457059045 is an apocalyptic number.

It is an amenable number.

78457059045 is a deficient number, since it is larger than the sum of its proper divisors (57535176711).

78457059045 is a wasteful number, since it uses less digits than its factorization.

78457059045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743490212 (or 1743490209 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 78457059045 in words is "seventy-eight billion, four hundred fifty-seven million, fifty-nine thousand, forty-five".