61442533454306 has 4 divisors (see below), whose sum is σ = 92163800181462. Its totient is φ = 30721266727152.

The previous prime is 61442533454297. The next prime is 61442533454333. The reversal of 61442533454306 is 60345433524416.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56865308546281 + 4577224908025 = 7540909^2 + 2139445^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15360633363575 + ... + 15360633363578.

Almost surely, 2^{61442533454306} is an apocalyptic number.

61442533454306 is a deficient number, since it is larger than the sum of its proper divisors (30721266727156).

61442533454306 is a wasteful number, since it uses less digits than its factorization.

61442533454306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30721266727155.

The product of its (nonzero) digits is 12441600, while the sum is 50.

The spelling of 61442533454306 in words is "sixty-one trillion, four hundred forty-two billion, five hundred thirty-three million, four hundred fifty-four thousand, three hundred six".