7019911485 has 12 divisors (see below), whose sum is σ = 12167846652. Its totient is φ = 3743952768.

The previous prime is 7019911453. The next prime is 7019911487. The reversal of 7019911485 is 5841199107.

It is a happy number.

7019911485 is a `hidden beast` number, since 70 + 1 + 99 + 11 + 485 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1798692921 + 5221218564 = 42411^2 + 72258^2 .

It is not a de Polignac number, because 7019911485 - 2⁵ = 7019911453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 155998033 = 7019911485 / (7 + 0 + 1 + 9 + 9 + 1 + 1 + 4 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 7019911485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7019911487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77998972 + ... + 77999061.

It is an arithmetic number, because the mean of its divisors is an integer number (1013987221).

Almost surely, 2^7019911485 is an apocalyptic number.

It is an amenable number.

7019911485 is a deficient number, since it is larger than the sum of its proper divisors (5147935167).

7019911485 is a wasteful number, since it uses less digits than its factorization.

7019911485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155998044 (or 155998041 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The square root of 7019911485 is about 83784.9120367146. The cubic root of 7019911485 is about 1914.7432419408.

The spelling of 7019911485 in words is "seven billion, nineteen million, nine hundred eleven thousand, four hundred eighty-five".