18967290927494 has 32 divisors (see below), whose sum is σ = 35021664014400. Its totient is φ = 7502445038592.

The previous prime is 18967290927493. The next prime is 18967290927527. The reversal of 18967290927494 is 49472909276981.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18967290927491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6382319 + ... + 8869530.

It is an arithmetic number, because the mean of its divisors is an integer number (1094427000450).

Almost surely, 2^{18967290927494} is an apocalyptic number.

18967290927494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18967290927494 is a deficient number, since it is larger than the sum of its proper divisors (16054373086906).

18967290927494 is a wasteful number, since it uses less digits than its factorization.

18967290927494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15258704.

The product of its (nonzero) digits is 987614208, while the sum is 77.

The spelling of 18967290927494 in words is "eighteen trillion, nine hundred sixty-seven billion, two hundred ninety million, nine hundred twenty-seven thousand, four hundred ninety-four".