612516055402477 has 4 divisors (see below), whose sum is σ = 618240504518496. Its totient is φ = 606791606286460.

The previous prime is 612516055402469. The next prime is 612516055402613. The reversal of 612516055402477 is 774204550615216.

612516055402477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 cyclic number.

It is not a de Polignac number, because 612516055402477 - 2³ = 612516055402469 is a prime.

It is a super-3 number, since 3×612516055402477³ (a number of 45 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 (612516055405477) 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, 2862224557849 + ... + 2862224558062.

It is an arithmetic number, because the mean of its divisors is an integer number (154560126129624).

Almost surely, 2^{612516055402477} is an apocalyptic number.

It is an amenable number.

612516055402477 is a deficient number, since it is larger than the sum of its proper divisors (5724449116019).

612516055402477 is a wasteful number, since it uses less digits than its factorization.

612516055402477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724449116018.

The product of its (nonzero) digits is 14112000, while the sum is 55.

The spelling of 612516055402477 in words is "six hundred twelve trillion, five hundred sixteen billion, fifty-five million, four hundred two thousand, four hundred seventy-seven".