613507772431 has 4 divisors (see below), whose sum is σ = 613889071600. Its totient is φ = 613126473264.

The previous prime is 613507772419. The next prime is 613507772473. The reversal of 613507772431 is 134277705316.

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

It is a cyclic number.

It is not a de Polignac number, because 613507772431 - 2¹⁹ = 613507248143 is a prime.

It is a super-2 number, since 2×613507772431² (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 (613507779431) 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, 190647171 + ... + 190650388.

It is an arithmetic number, because the mean of its divisors is an integer number (153472267900).

Almost surely, 2^613507772431 is an apocalyptic number.

613507772431 is a deficient number, since it is larger than the sum of its proper divisors (381299169).

613507772431 is a wasteful number, since it uses less digits than its factorization.

613507772431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381299168.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 613507772431 in words is "six hundred thirteen billion, five hundred seven million, seven hundred seventy-two thousand, four hundred thirty-one".