61041434897 has 4 divisors (see below), whose sum is σ = 64632107556. Its totient is φ = 57450762240.

The previous prime is 61041434887. The next prime is 61041434963. The reversal of 61041434897 is 79843414016.

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 29925886081 + 31115548816 = 172991^2 + 176396^2 .

It is a cyclic number.

It is not a de Polignac number, because 61041434897 - 2¹⁴ = 61041418513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61041434887) 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, 1795336304 + ... + 1795336337.

It is an arithmetic number, because the mean of its divisors is an integer number (16158026889).

Almost surely, 2^61041434897 is an apocalyptic number.

It is an amenable number.

61041434897 is a deficient number, since it is larger than the sum of its proper divisors (3590672659).

61041434897 is a wasteful number, since it uses less digits than its factorization.

61041434897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590672658.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 61041434897 in words is "sixty-one billion, forty-one million, four hundred thirty-four thousand, eight hundred ninety-seven".