211028520948 has 24 divisors (see below), whose sum is σ = 562742722752. Its totient is φ = 60293863104.

The previous prime is 211028520931. The next prime is 211028520991. The reversal of 211028520948 is 849025820112.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256122065 + ... + 1256122232.

It is an arithmetic number, because the mean of its divisors is an integer number (23447613448).

Almost surely, 2^211028520948 is an apocalyptic number.

211028520948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

211028520948 is an abundant number, since it is smaller than the sum of its proper divisors (351714201804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211028520948 is a wasteful number, since it uses less digits than its factorization.

211028520948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512244311 (or 2512244309 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 211028520948 in words is "two hundred eleven billion, twenty-eight million, five hundred twenty thousand, nine hundred forty-eight".