61254442402 has 16 divisors (see below), whose sum is σ = 92102250240. Its totient is φ = 30553733232.

The previous prime is 61254442393. The next prime is 61254442429. The reversal of 61254442402 is 20424445216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3826888 + ... + 3842860.

It is an arithmetic number, because the mean of its divisors is an integer number (5756390640).

Almost surely, 2^61254442402 is an apocalyptic number.

61254442402 is a deficient number, since it is larger than the sum of its proper divisors (30847807838).

61254442402 is a wasteful number, since it uses less digits than its factorization.

61254442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20457.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 61254442402 its reverse (20424445216), we get a palindrome (81678887618).

The spelling of 61254442402 in words is "sixty-one billion, two hundred fifty-four million, four hundred forty-two thousand, four hundred two".