61433007675251 has 4 divisors (see below), whose sum is σ = 61696668652632. Its totient is φ = 61169346697872.

The previous prime is 61433007675209. The next prime is 61433007675269. The reversal of 61433007675251 is 15257670033416.

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

It is a cyclic number.

It is not a de Polignac number, because 61433007675251 - 2³⁰ = 61431933933427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61433007675251.

It is not an unprimeable number, because it can be changed into a prime (61433007675751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131830488341 + ... + 131830488806.

It is an arithmetic number, because the mean of its divisors is an integer number (15424167163158).

Almost surely, 2^{61433007675251} is an apocalyptic number.

61433007675251 is a deficient number, since it is larger than the sum of its proper divisors (263660977381).

61433007675251 is a wasteful number, since it uses less digits than its factorization.

61433007675251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263660977380.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 61433007675251 in words is "sixty-one trillion, four hundred thirty-three billion, seven million, six hundred seventy-five thousand, two hundred fifty-one".