87125413730542 has 16 divisors (see below), whose sum is σ = 147485026378800. Its totient is φ = 38236858690240.

The previous prime is 87125413730473. The next prime is 87125413730557. The reversal of 87125413730542 is 24503731452178.

It is a super-2 number, since 2×87125413730542² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87125413730542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68280104167 + ... + 68280105442.

It is an arithmetic number, because the mean of its divisors is an integer number (9217814148675).

Almost surely, 2^{87125413730542} is an apocalyptic number.

87125413730542 is a deficient number, since it is larger than the sum of its proper divisors (60359612648258).

87125413730542 is a wasteful number, since it uses less digits than its factorization.

87125413730542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136560209651.

The product of its (nonzero) digits is 5644800, while the sum is 52.

The spelling of 87125413730542 in words is "eighty-seven trillion, one hundred twenty-five billion, four hundred thirteen million, seven hundred thirty thousand, five hundred forty-two".