61128613403 has 16 divisors (see below), whose sum is σ = 72474309600. Its totient is φ = 50826113280.

The previous prime is 61128613393. The next prime is 61128613421. The reversal of 61128613403 is 30431682116.

It is a cyclic number.

It is not a de Polignac number, because 61128613403 - 2¹² = 61128609307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61128613463) 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, 1945298 + ... + 1976471.

It is an arithmetic number, because the mean of its divisors is an integer number (4529644350).

Almost surely, 2^61128613403 is an apocalyptic number.

61128613403 is a deficient number, since it is larger than the sum of its proper divisors (11345696197).

61128613403 is a wasteful number, since it uses less digits than its factorization.

61128613403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921902.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 61128613403 in words is "sixty-one billion, one hundred twenty-eight million, six hundred thirteen thousand, four hundred three".