73872427819 has 2 divisors, whose sum is σ = 73872427820. Its totient is φ = 73872427818.

The previous prime is 73872427777. The next prime is 73872427841. The reversal of 73872427819 is 91872427837.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73872427819 - 2³⁵ = 39512689451 is a prime.

It is a super-2 number, since 2×73872427819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73872427919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36936213909 + 36936213910.

It is an arithmetic number, because the mean of its divisors is an integer number (36936213910).

Almost surely, 2^73872427819 is an apocalyptic number.

73872427819 is a deficient number, since it is larger than the sum of its proper divisors (1).

73872427819 is an equidigital number, since it uses as much as digits as its factorization.

73872427819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 58.

The spelling of 73872427819 in words is "seventy-three billion, eight hundred seventy-two million, four hundred twenty-seven thousand, eight hundred nineteen".