20270491029 has 16 divisors (see below), whose sum is σ = 30032553600. Its totient is φ = 13512672288.

The previous prime is 20270491019. The next prime is 20270491037. The reversal of 20270491029 is 92019407202.

It is not a de Polignac number, because 20270491029 - 2⁴ = 20270491013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20270490984 and 20270491002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270491009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679377 + ... + 708585.

It is an arithmetic number, because the mean of its divisors is an integer number (1877034600).

Almost surely, 2^20270491029 is an apocalyptic number.

It is an amenable number.

20270491029 is a deficient number, since it is larger than the sum of its proper divisors (9762062571).

20270491029 is a wasteful number, since it uses less digits than its factorization.

20270491029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54921 (or 54915 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 20270491029 in words is "twenty billion, two hundred seventy million, four hundred ninety-one thousand, twenty-nine".