81037483774 has 16 divisors (see below), whose sum is σ = 130911908400. Its totient is φ = 37400428800.

The previous prime is 81037483729. The next prime is 81037483777. The reversal of 81037483774 is 47738473018.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81037483777) 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, 868174 + ... + 956974.

It is an arithmetic number, because the mean of its divisors is an integer number (8181994275).

Almost surely, 2^81037483774 is an apocalyptic number.

81037483774 is a deficient number, since it is larger than the sum of its proper divisors (49874424626).

81037483774 is a wasteful number, since it uses less digits than its factorization.

81037483774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123915.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 81037483774 in words is "eighty-one billion, thirty-seven million, four hundred eighty-three thousand, seven hundred seventy-four".