78300787903 has 4 divisors (see below), whose sum is σ = 84323925448. Its totient is φ = 72277650360.

The previous prime is 78300787897. The next prime is 78300787927. The reversal of 78300787903 is 30978700387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30978700387 = 2053 ⋅15089479.

It is a cyclic number.

It is not a de Polignac number, because 78300787903 - 2⁵ = 78300787871 is a prime.

It is a super-2 number, since 2×78300787903² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78300787703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011568753 + ... + 3011568778.

It is an arithmetic number, because the mean of its divisors is an integer number (21080981362).

Almost surely, 2^78300787903 is an apocalyptic number.

78300787903 is a deficient number, since it is larger than the sum of its proper divisors (6023137545).

78300787903 is a wasteful number, since it uses less digits than its factorization.

78300787903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023137544.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 78300787903 in words is "seventy-eight billion, three hundred million, seven hundred eighty-seven thousand, nine hundred three".