101861213894 has 48 divisors (see below), whose sum is σ = 168824975760. Its totient is φ = 46058496000.

The previous prime is 101861213873. The next prime is 101861213929. The reversal of 101861213894 is 498312168101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63622694 + ... + 63624294.

It is an arithmetic number, because the mean of its divisors is an integer number (3517186995).

Almost surely, 2^101861213894 is an apocalyptic number.

101861213894 is a deficient number, since it is larger than the sum of its proper divisors (66963761866).

101861213894 is a wasteful number, since it uses less digits than its factorization.

101861213894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 101861213894 in words is "one hundred one billion, eight hundred sixty-one million, two hundred thirteen thousand, eight hundred ninety-four".