209007848950 has 144 divisors (see below), whose sum is σ = 424509972480. Its totient is φ = 76503329280.

The previous prime is 209007848927. The next prime is 209007848977. The reversal of 209007848950 is 59848700902.

It is a super-2 number, since 2×209007848950² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 163414411 + ... + 163415689.

It is an arithmetic number, because the mean of its divisors is an integer number (2947985920).

Almost surely, 2^209007848950 is an apocalyptic number.

209007848950 is an abundant number, since it is smaller than the sum of its proper divisors (215502123530).

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

209007848950 is a wasteful number, since it uses less digits than its factorization.

209007848950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 209007848950 in words is "two hundred nine billion, seven million, eight hundred forty-eight thousand, nine hundred fifty".