891729964150 has 48 divisors (see below), whose sum is σ = 1687263664464. Its totient is φ = 350556180480.

The previous prime is 891729964121. The next prime is 891729964157. The reversal of 891729964150 is 51469927198.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891729964157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143174 + ... + 1757926.

It is an arithmetic number, because the mean of its divisors is an integer number (35151326343).

Almost surely, 2^891729964150 is an apocalyptic number.

891729964150 is a deficient number, since it is larger than the sum of its proper divisors (795533700314).

891729964150 is a wasteful number, since it uses less digits than its factorization.

891729964150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615265 (or 615260 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 891729964150 in words is "eight hundred ninety-one billion, seven hundred twenty-nine million, nine hundred sixty-four thousand, one hundred fifty".