78245206641262 has 4 divisors (see below), whose sum is σ = 117367809961896. Its totient is φ = 39122603320630.

The previous prime is 78245206641233. The next prime is 78245206641293. The reversal of 78245206641262 is 26214660254287.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×78245206641262² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19561301660314 + ... + 19561301660317.

It is an arithmetic number, because the mean of its divisors is an integer number (29341952490474).

Almost surely, 2^{78245206641262} is an apocalyptic number.

78245206641262 is a deficient number, since it is larger than the sum of its proper divisors (39122603320634).

78245206641262 is a wasteful number, since it uses less digits than its factorization.

78245206641262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39122603320633.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 78245206641262 in words is "seventy-eight trillion, two hundred forty-five billion, two hundred six million, six hundred forty-one thousand, two hundred sixty-two".