20849393070 has 96 divisors (see below), whose sum is σ = 60734849760. Its totient is φ = 4917784320.

The previous prime is 20849393041. The next prime is 20849393141. The reversal of 20849393070 is 7039394802.

It is a happy number.

20849393070 is a `hidden beast` number, since 2 + 0 + 8 + 493 + 93 + 0 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247965 + ... + 321224.

It is an arithmetic number, because the mean of its divisors is an integer number (632654685).

Almost surely, 2^20849393070 is an apocalyptic number.

20849393070 is an abundant number, since it is smaller than the sum of its proper divisors (39885456690).

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

20849393070 is a wasteful number, since it uses less digits than its factorization.

20849393070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569250 (or 569247 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 20849393070 in words is "twenty billion, eight hundred forty-nine million, three hundred ninety-three thousand, seventy".