7140561469381 has 4 divisors (see below), whose sum is σ = 7150303027372. Its totient is φ = 7130819911392.

The previous prime is 7140561469369. The next prime is 7140561469409. The reversal of 7140561469381 is 1839641650417.

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 4936435232481 + 2204126236900 = 2221809^2 + 1484630^2 .

It is a cyclic number.

It is not a de Polignac number, because 7140561469381 - 2²¹ = 7140559372229 is a prime.

It is a super-2 number, since 2×7140561469381² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140561469681) 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, 4870777896 + ... + 4870779361.

It is an arithmetic number, because the mean of its divisors is an integer number (1787575756843).

Almost surely, 2^{7140561469381} is an apocalyptic number.

It is an amenable number.

7140561469381 is a deficient number, since it is larger than the sum of its proper divisors (9741557991).

7140561469381 is an equidigital number, since it uses as much as digits as its factorization.

7140561469381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741557990.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 7140561469381 in words is "seven trillion, one hundred forty billion, five hundred sixty-one million, four hundred sixty-nine thousand, three hundred eighty-one".