73770987642 has 16 divisors (see below), whose sum is σ = 160954882272. Its totient is φ = 22354844720.

The previous prime is 73770987629. The next prime is 73770987677. The reversal of 73770987642 is 24678907737.

It is a super-2 number, since 2×73770987642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558871053 + ... + 558871184.

It is an arithmetic number, because the mean of its divisors is an integer number (10059680142).

Almost surely, 2^73770987642 is an apocalyptic number.

73770987642 is an abundant number, since it is smaller than the sum of its proper divisors (87183894630).

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

73770987642 is a wasteful number, since it uses less digits than its factorization.

73770987642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117742253.

The product of its (nonzero) digits is 24893568, while the sum is 60.

The spelling of 73770987642 in words is "seventy-three billion, seven hundred seventy million, nine hundred eighty-seven thousand, six hundred forty-two".