61277000613577 has 4 divisors (see below), whose sum is σ = 70030857844096. Its totient is φ = 52523143383060.

The previous prime is 61277000613551. The next prime is 61277000613583. The reversal of 61277000613577 is 77531600077216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-61277000613577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61277000613377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4376928615249 + ... + 4376928615262.

It is an arithmetic number, because the mean of its divisors is an integer number (17507714461024).

Almost surely, 2^{61277000613577} is an apocalyptic number.

It is an amenable number.

61277000613577 is a deficient number, since it is larger than the sum of its proper divisors (8753857230519).

61277000613577 is an equidigital number, since it uses as much as digits as its factorization.

61277000613577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8753857230518.

The product of its (nonzero) digits is 2593080, while the sum is 52.

The spelling of 61277000613577 in words is "sixty-one trillion, two hundred seventy-seven billion, six hundred thirteen thousand, five hundred seventy-seven".