20783401350 has 48 divisors (see below), whose sum is σ = 52935899088. Its totient is φ = 5392448640.

The previous prime is 20783401343. The next prime is 20783401367. The reversal of 20783401350 is 5310438702.

It is a Curzon number.

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, 1866829 + ... + 1877928.

It is an arithmetic number, because the mean of its divisors is an integer number (1102831231).

Almost surely, 2^20783401350 is an apocalyptic number.

20783401350 is an abundant number, since it is smaller than the sum of its proper divisors (32152497738).

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

20783401350 is a wasteful number, since it uses less digits than its factorization.

20783401350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744809 (or 3744804 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 20783401350 in words is "twenty billion, seven hundred eighty-three million, four hundred one thousand, three hundred fifty".