211861262030 has 64 divisors (see below), whose sum is σ = 419124602880. Its totient is φ = 76466332800.

The previous prime is 211861262017. The next prime is 211861262051. The reversal of 211861262030 is 30262168112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17108381 + ... + 17120759.

It is an arithmetic number, because the mean of its divisors is an integer number (6548821920).

Almost surely, 2^211861262030 is an apocalyptic number.

211861262030 is a deficient number, since it is larger than the sum of its proper divisors (207263340850).

211861262030 is a wasteful number, since it uses less digits than its factorization.

211861262030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13545.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 211861262030 in words is "two hundred eleven billion, eight hundred sixty-one million, two hundred sixty-two thousand, thirty".