78508214701 has 4 divisors (see below), whose sum is σ = 89723673952. Its totient is φ = 67292755452.

The previous prime is 78508214689. The next prime is 78508214737. The reversal of 78508214701 is 10741280587.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78508214701 - 2⁵ = 78508214669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78508214761) 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, 5607729615 + ... + 5607729628.

It is an arithmetic number, because the mean of its divisors is an integer number (22430918488).

Almost surely, 2^78508214701 is an apocalyptic number.

It is an amenable number.

78508214701 is a deficient number, since it is larger than the sum of its proper divisors (11215459251).

78508214701 is a wasteful number, since it uses less digits than its factorization.

78508214701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215459250.

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 78508214701 in words is "seventy-eight billion, five hundred eight million, two hundred fourteen thousand, seven hundred one".