20434912801270 has 96 divisors (see below), whose sum is σ = 40943170535904. Its totient is φ = 7336805076480.

The previous prime is 20434912801231. The next prime is 20434912801273. The reversal of 20434912801270 is 7210821943402.

It is a super-2 number, since 2×20434912801270² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434912801273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164341762 + ... + 164466058.

It is an arithmetic number, because the mean of its divisors is an integer number (426491359749).

Almost surely, 2^{20434912801270} is an apocalyptic number.

20434912801270 is an abundant number, since it is smaller than the sum of its proper divisors (20508257734634).

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

20434912801270 is a wasteful number, since it uses less digits than its factorization.

20434912801270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126046 (or 126035 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 20434912801270 in words is "twenty trillion, four hundred thirty-four billion, nine hundred twelve million, eight hundred one thousand, two hundred seventy".