40342460561 has 16 divisors (see below), whose sum is σ = 43713008640. Its totient is φ = 37010455680.

The previous prime is 40342460519. The next prime is 40342460611. The reversal of 40342460561 is 16506424304.

It is a cyclic number.

It is not a de Polignac number, because 40342460561 - 2²² = 40338266257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40342460461) 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, 2955410 + ... + 2969028.

It is an arithmetic number, because the mean of its divisors is an integer number (2732063040).

Almost surely, 2^40342460561 is an apocalyptic number.

It is an amenable number.

40342460561 is a deficient number, since it is larger than the sum of its proper divisors (3370548079).

40342460561 is a wasteful number, since it uses less digits than its factorization.

40342460561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15016.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 40342460561 its reverse (16506424304), we get a palindrome (56848884865).

The spelling of 40342460561 in words is "forty billion, three hundred forty-two million, four hundred sixty thousand, five hundred sixty-one".