78575771917403 has 16 divisors (see below), whose sum is σ = 79324239595200. Its totient is φ = 77829943564800.

The previous prime is 78575771917343. The next prime is 78575771917453. The reversal of 78575771917403 is 30471917757587.

It is a cyclic number.

It is not a de Polignac number, because 78575771917403 - 2¹² = 78575771913307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78575771917453) 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, 206670623 + ... + 207050471.

It is an arithmetic number, because the mean of its divisors is an integer number (4957764974700).

Almost surely, 2^{78575771917403} is an apocalyptic number.

78575771917403 is a deficient number, since it is larger than the sum of its proper divisors (748467677797).

78575771917403 is a wasteful number, since it uses less digits than its factorization.

78575771917403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383318.

The product of its (nonzero) digits is 363031200, while the sum is 71.

The spelling of 78575771917403 in words is "seventy-eight trillion, five hundred seventy-five billion, seven hundred seventy-one million, nine hundred seventeen thousand, four hundred three".