20357531476 has 24 divisors (see below), whose sum is σ = 36861945120. Its totient is φ = 9825695712.

The previous prime is 20357531473. The next prime is 20357531489. The reversal of 20357531476 is 67413575302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20357531473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629535 + ... + 661081.

It is an arithmetic number, because the mean of its divisors is an integer number (1535914380).

Almost surely, 2^20357531476 is an apocalyptic number.

It is an amenable number.

20357531476 is a deficient number, since it is larger than the sum of its proper divisors (16504413644).

20357531476 is a wasteful number, since it uses less digits than its factorization.

20357531476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37143 (or 37141 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 20357531476 in words is "twenty billion, three hundred fifty-seven million, five hundred thirty-one thousand, four hundred seventy-six".