20289490460626 has 8 divisors (see below), whose sum is σ = 30532094970624. Its totient is φ = 10112125470420.

The previous prime is 20289490460621. The next prime is 20289490460627. The reversal of 20289490460626 is 62606409498202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20289490460621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16309879170 + ... + 16309880413.

It is an arithmetic number, because the mean of its divisors is an integer number (3816511871328).

Almost surely, 2^{20289490460626} is an apocalyptic number.

20289490460626 is a deficient number, since it is larger than the sum of its proper divisors (10242604509998).

20289490460626 is a wasteful number, since it uses less digits than its factorization.

20289490460626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32619759896.

The product of its (nonzero) digits is 17915904, while the sum is 58.

The spelling of 20289490460626 in words is "twenty trillion, two hundred eighty-nine billion, four hundred ninety million, four hundred sixty thousand, six hundred twenty-six".