891964387294 has 8 divisors (see below), whose sum is σ = 1341673452720. Its totient is φ = 444739903056.

The previous prime is 891964387271. The next prime is 891964387297. The reversal of 891964387294 is 492783469198.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891964387297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621144399 + ... + 621145834.

It is an arithmetic number, because the mean of its divisors is an integer number (167709181590).

Almost surely, 2^891964387294 is an apocalyptic number.

891964387294 is a deficient number, since it is larger than the sum of its proper divisors (449709065426).

891964387294 is a wasteful number, since it uses less digits than its factorization.

891964387294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242290594.

The product of its digits is 188116992, while the sum is 70.

The spelling of 891964387294 in words is "eight hundred ninety-one billion, nine hundred sixty-four million, three hundred eighty-seven thousand, two hundred ninety-four".