612575640541 has 4 divisors (see below), whose sum is σ = 629131738972. Its totient is φ = 596019542112.

The previous prime is 612575640529. The next prime is 612575640559. The reversal of 612575640541 is 145046575216.

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 346555916100 + 266019724441 = 588690^2 + 515771^2 .

It is a cyclic number.

It is not a de Polignac number, because 612575640541 - 2¹³ = 612575632349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612575640491 and 612575640500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612575640241) 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, 8278049160 + ... + 8278049233.

It is an arithmetic number, because the mean of its divisors is an integer number (157282934743).

Almost surely, 2^612575640541 is an apocalyptic number.

It is an amenable number.

612575640541 is a deficient number, since it is larger than the sum of its proper divisors (16556098431).

612575640541 is a wasteful number, since it uses less digits than its factorization.

612575640541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16556098430.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 612575640541 in words is "six hundred twelve billion, five hundred seventy-five million, six hundred forty thousand, five hundred forty-one".