81481480034 has 32 divisors (see below), whose sum is σ = 124442728704. Its totient is φ = 40005947520.

The previous prime is 81481480033. The next prime is 81481480121. The reversal of 81481480034 is 43008418418.

It is a super-2 number, since 2×81481480034² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 81481479973 and 81481480000.

It is not an unprimeable number, because it can be changed into a prime (81481480033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38056604 + ... + 38058744.

It is an arithmetic number, because the mean of its divisors is an integer number (3888835272).

Almost surely, 2^81481480034 is an apocalyptic number.

81481480034 is a deficient number, since it is larger than the sum of its proper divisors (42961248670).

81481480034 is a wasteful number, since it uses less digits than its factorization.

81481480034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 81481480034 in words is "eighty-one billion, four hundred eighty-one million, four hundred eighty thousand, thirty-four".