61456140367 has 2 divisors, whose sum is σ = 61456140368. Its totient is φ = 61456140366.

The previous prime is 61456140341. The next prime is 61456140439. The reversal of 61456140367 is 76304165416.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61456140367 is a prime.

It is a super-3 number, since 3×61456140367³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61456144367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30728070183 + 30728070184.

It is an arithmetic number, because the mean of its divisors is an integer number (30728070184).

Almost surely, 2^61456140367 is an apocalyptic number.

61456140367 is a deficient number, since it is larger than the sum of its proper divisors (1).

61456140367 is an equidigital number, since it uses as much as digits as its factorization.

61456140367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 61456140367 in words is "sixty-one billion, four hundred fifty-six million, one hundred forty thousand, three hundred sixty-seven".