134927987819 has 8 divisors (see below), whose sum is σ = 140944705440. Its totient is φ = 128923793856.

The previous prime is 134927987813. The next prime is 134927987833. The reversal of 134927987819 is 918789729431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134927987819 - 2³² = 130633020523 is a prime.

It is a super-2 number, since 2×134927987819² (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 (134927987813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3108884 + ... + 3151985.

It is an arithmetic number, because the mean of its divisors is an integer number (17618088180).

Almost surely, 2^134927987819 is an apocalyptic number.

134927987819 is a deficient number, since it is larger than the sum of its proper divisors (6016717621).

134927987819 is an equidigital number, since it uses as much as digits as its factorization.

134927987819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261829.

The product of its digits is 54867456, while the sum is 68.

The spelling of 134927987819 in words is "one hundred thirty-four billion, nine hundred twenty-seven million, nine hundred eighty-seven thousand, eight hundred nineteen".