42502315523442 has 32 divisors (see below), whose sum is σ = 90738820408320. Its totient is φ = 13232744637840.

The previous prime is 42502315523411. The next prime is 42502315523443. The reversal of 42502315523442 is 24432551320524.

It is a junction number, because it is equal to n+sod(n) for n = 42502315523394 and 42502315523403.

It is not an unprimeable number, because it can be changed into a prime (42502315523443) 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, 2625536478 + ... + 2625552665.

It is an arithmetic number, because the mean of its divisors is an integer number (2835588137760).

Almost surely, 2^{42502315523442} is an apocalyptic number.

42502315523442 is an abundant number, since it is smaller than the sum of its proper divisors (48236504884878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42502315523442 is a wasteful number, since it uses less digits than its factorization.

42502315523442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251089238.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 42502315523442 its reverse (24432551320524), we get a palindrome (66934866843966).

The spelling of 42502315523442 in words is "forty-two trillion, five hundred two billion, three hundred fifteen million, five hundred twenty-three thousand, four hundred forty-two".