81010926703 has 32 divisors (see below), whose sum is σ = 95847307776. Its totient is φ = 67034867328.

The previous prime is 81010926697. The next prime is 81010926709. The reversal of 81010926703 is 30762901018.

It is an interprime number because it is at equal distance from previous prime (81010926697) and next prime (81010926709).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81010926703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81010926709) 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, 36116100 + ... + 36118342.

It is an arithmetic number, because the mean of its divisors is an integer number (2995228368).

Almost surely, 2^81010926703 is an apocalyptic number.

81010926703 is a deficient number, since it is larger than the sum of its proper divisors (14836381073).

81010926703 is a wasteful number, since it uses less digits than its factorization.

81010926703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 81010926703 in words is "eighty-one billion, ten million, nine hundred twenty-six thousand, seven hundred three".