78261026703 has 8 divisors (see below), whose sum is σ = 104924544816. Its totient is φ = 51885763200.

The previous prime is 78261026693. The next prime is 78261026717. The reversal of 78261026703 is 30762016287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78261026703 - 2⁴ = 78261026687 is a prime.

It is a super-2 number, since 2×78261026703² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78261026783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72063018 + ... + 72064103.

It is an arithmetic number, because the mean of its divisors is an integer number (13115568102).

Almost surely, 2^78261026703 is an apocalyptic number.

78261026703 is a deficient number, since it is larger than the sum of its proper divisors (26663518113).

78261026703 is a wasteful number, since it uses less digits than its factorization.

78261026703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144127305.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 78261026703 in words is "seventy-eight billion, two hundred sixty-one million, twenty-six thousand, seven hundred three".