81074295463 has 8 divisors (see below), whose sum is σ = 93611558432. Its totient is φ = 68775837696.

The previous prime is 81074295457. The next prime is 81074295473. The reversal of 81074295463 is 36459247018.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81074295463 - 2⁵ = 81074295431 is a prime.

It is a super-3 number, since 3×81074295463³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81074295403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59700570 + ... + 59701927.

It is an arithmetic number, because the mean of its divisors is an integer number (11701444804).

It is a 1-persistent number, because it is pandigital, but 2⋅81074295463 = 162148590926 is not.

Almost surely, 2^81074295463 is an apocalyptic number.

81074295463 is a deficient number, since it is larger than the sum of its proper divisors (12537262969).

81074295463 is a wasteful number, since it uses less digits than its factorization.

81074295463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119402601.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 81074295463 in words is "eighty-one billion, seventy-four million, two hundred ninety-five thousand, four hundred sixty-three".