78967964293623 has 6 divisors (see below), whose sum is σ = 114064837313024. Its totient is φ = 52645309529076.

The previous prime is 78967964293613. The next prime is 78967964293633. The reversal of 78967964293623 is 32639246976987.

78967964293623 is a `hidden beast` number, since 7 + 8 + 96 + 79 + 6 + 429 + 36 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (78967964293613) and next prime (78967964293633).

It is not a de Polignac number, because 78967964293623 - 2⁸ = 78967964293367 is a prime.

It is a super-2 number, since 2×78967964293623² (a number of 29 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 (78967964293613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4387109127415 + ... + 4387109127432.

Almost surely, 2^{78967964293623} is an apocalyptic number.

78967964293623 is a deficient number, since it is larger than the sum of its proper divisors (35096873019401).

78967964293623 is a wasteful number, since it uses less digits than its factorization.

78967964293623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8774218254853 (or 8774218254850 counting only the distinct ones).

The product of its digits is 8888527872, while the sum is 81.

The spelling of 78967964293623 in words is "seventy-eight trillion, nine hundred sixty-seven billion, nine hundred sixty-four million, two hundred ninety-three thousand, six hundred twenty-three".