81514750150 has 24 divisors (see below), whose sum is σ = 151802185824. Its totient is φ = 32566168800.

The previous prime is 81514750147. The next prime is 81514750157. The reversal of 81514750150 is 5105741518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81514750157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 951822 + ... + 1033921.

It is an arithmetic number, because the mean of its divisors is an integer number (6325091076).

Almost surely, 2^81514750150 is an apocalyptic number.

81514750150 is a deficient number, since it is larger than the sum of its proper divisors (70287435674).

81514750150 is a wasteful number, since it uses less digits than its factorization.

81514750150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986576 (or 1986571 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 37.

The spelling of 81514750150 in words is "eighty-one billion, five hundred fourteen million, seven hundred fifty thousand, one hundred fifty".