61076621047 has 4 divisors (see below), whose sum is σ = 65774822680. Its totient is φ = 56378419416.

The previous prime is 61076621033. The next prime is 61076621059. The reversal of 61076621047 is 74012667016.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61076621047 is a prime.

It is a super-3 number, since 3×61076621047³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61076621147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349100797 + ... + 2349100822.

It is an arithmetic number, because the mean of its divisors is an integer number (16443705670).

Almost surely, 2^61076621047 is an apocalyptic number.

61076621047 is a deficient number, since it is larger than the sum of its proper divisors (4698201633).

61076621047 is a wasteful number, since it uses less digits than its factorization.

61076621047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698201632.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 61076621047 in words is "sixty-one billion, seventy-six million, six hundred twenty-one thousand, forty-seven".