19480501501 has 4 divisors (see below), whose sum is σ = 20626413372. Its totient is φ = 18334589632.

The previous prime is 19480501489. The next prime is 19480501511. The reversal of 19480501501 is 10510508491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16932775876 + 2547725625 = 130126^2 + 50475^2 .

It is a cyclic number.

It is not a de Polignac number, because 19480501501 - 2³³ = 10890566909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480501511) 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 3 ways as a sum of consecutive naturals, for example, 572955910 + ... + 572955943.

It is an arithmetic number, because the mean of its divisors is an integer number (5156603343).

Almost surely, 2^19480501501 is an apocalyptic number.

It is an amenable number.

19480501501 is a deficient number, since it is larger than the sum of its proper divisors (1145911871).

19480501501 is a wasteful number, since it uses less digits than its factorization.

19480501501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145911870.

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 19480501501 in words is "nineteen billion, four hundred eighty million, five hundred one thousand, five hundred one".