87749347542 has 16 divisors (see below), whose sum is σ = 185822147952. Its totient is φ = 27529207040.

The previous prime is 87749347541. The next prime is 87749347571. The reversal of 87749347542 is 24574394778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87749347541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430143759 + ... + 430143962.

It is an arithmetic number, because the mean of its divisors is an integer number (11613884247).

Almost surely, 2^87749347542 is an apocalyptic number.

87749347542 is an abundant number, since it is smaller than the sum of its proper divisors (98072800410).

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

87749347542 is a wasteful number, since it uses less digits than its factorization.

87749347542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860287743.

The product of its digits is 47416320, while the sum is 60.

The spelling of 87749347542 in words is "eighty-seven billion, seven hundred forty-nine million, three hundred forty-seven thousand, five hundred forty-two".