78462799726487 has 32 divisors (see below), whose sum is σ = 88601797853184. Its totient is φ = 68867316050400.

The previous prime is 78462799726433. The next prime is 78462799726489.

78462799726487 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 78462799726487 - 2²⁶ = 78462732617623 is a prime.

It is a super-2 number, since 2×78462799726487² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78462799726399 and 78462799726408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78462799726489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13869338 + ... + 18689144.

It is an arithmetic number, because the mean of its divisors is an integer number (2768806182912).

Almost surely, 2^{78462799726487} is an apocalyptic number.

78462799726487 is a deficient number, since it is larger than the sum of its proper divisors (10138998126697).

78462799726487 is a wasteful number, since it uses less digits than its factorization.

78462799726487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820259.

The product of its digits is 28677390336, while the sum is 86.

The spelling of 78462799726487 in words is "seventy-eight trillion, four hundred sixty-two billion, seven hundred ninety-nine million, seven hundred twenty-six thousand, four hundred eighty-seven".