67481972419 has 4 divisors (see below), whose sum is σ = 67732835040. Its totient is φ = 67231109800.

The previous prime is 67481972387. The next prime is 67481972429. The reversal of 67481972419 is 91427918476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67481972419 - 2⁵ = 67481972387 is a prime.

It is a super-2 number, since 2×67481972419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67481972429) 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, 125430907 + ... + 125431444.

It is an arithmetic number, because the mean of its divisors is an integer number (16933208760).

Almost surely, 2^67481972419 is an apocalyptic number.

67481972419 is a deficient number, since it is larger than the sum of its proper divisors (250862621).

67481972419 is a wasteful number, since it uses less digits than its factorization.

67481972419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250862620.

The product of its digits is 6096384, while the sum is 58.

The spelling of 67481972419 in words is "sixty-seven billion, four hundred eighty-one million, nine hundred seventy-two thousand, four hundred nineteen".