61410013405 has 16 divisors (see below), whose sum is σ = 81296261424. Its totient is φ = 44242859520.

The previous prime is 61410013403. The next prime is 61410013463. The reversal of 61410013405 is 50431001416.

61410013405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 21426811641 + 39983201764 = 146379^2 + 199958^2 .

It is not a de Polignac number, because 61410013405 - 2¹ = 61410013403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61410013405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61410013403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11518914 + ... + 11524243.

It is an arithmetic number, because the mean of its divisors is an integer number (5081016339).

Almost surely, 2^61410013405 is an apocalyptic number.

61410013405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61410013405 is a deficient number, since it is larger than the sum of its proper divisors (19886248019).

61410013405 is a wasteful number, since it uses less digits than its factorization.

61410013405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23043216.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 61410013405 in words is "sixty-one billion, four hundred ten million, thirteen thousand, four hundred five".