20514605380 has 24 divisors (see below), whose sum is σ = 43723669248. Its totient is φ = 8083366368.

The previous prime is 20514605357. The next prime is 20514605383. The reversal of 20514605380 is 8350641502.

It is not an unprimeable number, because it can be changed into a prime (20514605383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7653364 + ... + 7656043.

It is an arithmetic number, because the mean of its divisors is an integer number (1821819552).

Almost surely, 2^20514605380 is an apocalyptic number.

20514605380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20514605380 is an abundant number, since it is smaller than the sum of its proper divisors (23209063868).

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

20514605380 is a wasteful number, since it uses less digits than its factorization.

20514605380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309483 (or 15309481 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20514605380 in words is "twenty billion, five hundred fourteen million, six hundred five thousand, three hundred eighty".