81419088783 has 32 divisors (see below), whose sum is σ = 113142205440. Its totient is φ = 52042273920.

The previous prime is 81419088733. The next prime is 81419088853. The reversal of 81419088783 is 38788091418.

It is not a de Polignac number, because 81419088783 - 2⁶ = 81419088719 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81419088733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1739953 + ... + 1786133.

It is an arithmetic number, because the mean of its divisors is an integer number (3535693920).

Almost surely, 2^81419088783 is an apocalyptic number.

81419088783 is a deficient number, since it is larger than the sum of its proper divisors (31723116657).

81419088783 is a wasteful number, since it uses less digits than its factorization.

81419088783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46479.

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 81419088783 in words is "eighty-one billion, four hundred nineteen million, eighty-eight thousand, seven hundred eighty-three".