78041687627 has 4 divisors (see below), whose sum is σ = 78042263016. Its totient is φ = 78041112240.

The previous prime is 78041687623. The next prime is 78041687639. The reversal of 78041687627 is 72678614087.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72678614087 = 359 ⋅202447393.

It is a cyclic number.

It is not a de Polignac number, because 78041687627 - 2² = 78041687623 is a prime.

It is a super-2 number, since 2×78041687627² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78041687621) 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, 40727 + ... + 397167.

It is an arithmetic number, because the mean of its divisors is an integer number (19510565754).

Almost surely, 2^78041687627 is an apocalyptic number.

78041687627 is a deficient number, since it is larger than the sum of its proper divisors (575389).

78041687627 is a wasteful number, since it uses less digits than its factorization.

78041687627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575388.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 78041687627 in words is "seventy-eight billion, forty-one million, six hundred eighty-seven thousand, six hundred twenty-seven".