398601268535 has 8 divisors (see below), whose sum is σ = 478345431696. Its totient is φ = 318865075200.

The previous prime is 398601268501. The next prime is 398601268537. The reversal of 398601268535 is 535862106893.

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

It is not a de Polignac number, because 398601268535 - 2¹⁶ = 398601202999 is a prime.

It is a super-2 number, since 2×398601268535² (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 (398601268537) 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, 1881866 + ... + 2082935.

It is an arithmetic number, because the mean of its divisors is an integer number (59793178962).

Almost surely, 2^398601268535 is an apocalyptic number.

398601268535 is a deficient number, since it is larger than the sum of its proper divisors (79744163161).

398601268535 is a wasteful number, since it uses less digits than its factorization.

398601268535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984913.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 398601268535 in words is "three hundred ninety-eight billion, six hundred one million, two hundred sixty-eight thousand, five hundred thirty-five".