11678906431 has 2 divisors, whose sum is σ = 11678906432. Its totient is φ = 11678906430.

The previous prime is 11678906417. The next prime is 11678906467. The reversal of 11678906431 is 13460987611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11678906431 - 2¹³ = 11678898239 is a prime.

It is a super-2 number, since 2×11678906431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11678906231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5839453215 + 5839453216.

It is an arithmetic number, because the mean of its divisors is an integer number (5839453216).

Almost surely, 2^11678906431 is an apocalyptic number.

11678906431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11678906431 is an equidigital number, since it uses as much as digits as its factorization.

11678906431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 11678906431 in words is "eleven billion, six hundred seventy-eight million, nine hundred six thousand, four hundred thirty-one".