20147912514 has 16 divisors (see below), whose sum is σ = 44773139040. Its totient is φ = 6715970820.

The previous prime is 20147912513. The next prime is 20147912567. The reversal of 20147912514 is 41521974102.

It is not an unprimeable number, because it can be changed into a prime (20147912513) 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 7 ways as a sum of consecutive naturals, for example, 186554692 + ... + 186554799.

It is an arithmetic number, because the mean of its divisors is an integer number (2798321190).

Almost surely, 2^20147912514 is an apocalyptic number.

20147912514 is an abundant number, since it is smaller than the sum of its proper divisors (24625226526).

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

20147912514 is a wasteful number, since it uses less digits than its factorization.

20147912514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373109502 (or 373109496 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 20147912514 in words is "twenty billion, one hundred forty-seven million, nine hundred twelve thousand, five hundred fourteen".