642115511246 has 32 divisors (see below), whose sum is σ = 1054630886400. Its totient is φ = 290789853280.

The previous prime is 642115511243. The next prime is 642115511269.

642115511246 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×642115511246³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642115511243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8674640 + ... + 8748348.

It is an arithmetic number, because the mean of its divisors is an integer number (32957215200).

Almost surely, 2^642115511246 is an apocalyptic number.

642115511246 is a deficient number, since it is larger than the sum of its proper divisors (412515375154).

642115511246 is a wasteful number, since it uses less digits than its factorization.

642115511246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75184.

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

The spelling of 642115511246 in words is "six hundred forty-two billion, one hundred fifteen million, five hundred eleven thousand, two hundred forty-six".