20001701870 has 32 divisors (see below), whose sum is σ = 36160064928. Its totient is φ = 7965836928.

The previous prime is 20001701833. The next prime is 20001701887. The reversal of 20001701870 is 7810710002.

It is a super-2 number, since 2×20001701870² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6749009 + ... + 6751971.

It is an arithmetic number, because the mean of its divisors is an integer number (1130002029).

Almost surely, 2^20001701870 is an apocalyptic number.

20001701870 is a deficient number, since it is larger than the sum of its proper divisors (16158363058).

20001701870 is a wasteful number, since it uses less digits than its factorization.

20001701870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 784, while the sum is 26.

The spelling of 20001701870 in words is "twenty billion, one million, seven hundred one thousand, eight hundred seventy".