612121465541 has 8 divisors (see below), whose sum is σ = 661752936480. Its totient is φ = 564231449808.

The previous prime is 612121465519. The next prime is 612121465573. The reversal of 612121465541 is 145564121216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612121465541 - 2¹⁴ = 612121449157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612121465495 and 612121465504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612121465511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435363071 + ... + 435364476.

It is an arithmetic number, because the mean of its divisors is an integer number (82719117060).

Almost surely, 2^612121465541 is an apocalyptic number.

It is an amenable number.

612121465541 is a deficient number, since it is larger than the sum of its proper divisors (49631470939).

612121465541 is a wasteful number, since it uses less digits than its factorization.

612121465541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870727603.

The product of its digits is 57600, while the sum is 38.

Adding to 612121465541 its reverse (145564121216), we get a palindrome (757685586757).

The spelling of 612121465541 in words is "six hundred twelve billion, one hundred twenty-one million, four hundred sixty-five thousand, five hundred forty-one".