642357424753246 has 64 divisors (see below), whose sum is σ = 1061110160640000. Its totient is φ = 290282724103680.

The previous prime is 642357424753241. The next prime is 642357424753301.

642357424753246 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×642357424753246² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642357424753241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505401211 + ... + 506670601.

It is an arithmetic number, because the mean of its divisors is an integer number (16579846260000).

Almost surely, 2^{642357424753246} is an apocalyptic number.

642357424753246 is a deficient number, since it is larger than the sum of its proper divisors (418752735886754).

642357424753246 is a wasteful number, since it uses less digits than its factorization.

642357424753246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272217.

The product of its digits is 812851200, while the sum is 64.

The spelling of 642357424753246 in words is "six hundred forty-two trillion, three hundred fifty-seven billion, four hundred twenty-four million, seven hundred fifty-three thousand, two hundred forty-six".