511356326077 has 4 divisors (see below), whose sum is σ = 511358485500. Its totient is φ = 511354166656.

The previous prime is 511356326071. The next prime is 511356326119. The reversal of 511356326077 is 770623653115.

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

It can be written as a sum of positive squares in 2 ways, for example, as 120588813081 + 390767512996 = 347259^2 + 625114^2 .

It is a cyclic number.

It is not a de Polignac number, because 511356326077 - 2²³ = 511347937469 is a prime.

It is a super-2 number, since 2×511356326077² (a number of 24 digits) contains 22 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 (511356326071) 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, 673588 + ... + 1215085.

It is an arithmetic number, because the mean of its divisors is an integer number (127839621375).

Almost surely, 2^511356326077 is an apocalyptic number.

It is an amenable number.

511356326077 is a deficient number, since it is larger than the sum of its proper divisors (2159423).

511356326077 is a wasteful number, since it uses less digits than its factorization.

511356326077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159422.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 511356326077 in words is "five hundred eleven billion, three hundred fifty-six million, three hundred twenty-six thousand, seventy-seven".