73942505511 has 8 divisors (see below), whose sum is σ = 112674294144. Its totient is φ = 42252860280.

The previous prime is 73942505477. The next prime is 73942505519. The reversal of 73942505511 is 11550524937.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73942505511 - 2¹⁵ = 73942472743 is a prime.

It is a super-2 number, since 2×73942505511² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73942505519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760535825 + ... + 1760535866.

It is an arithmetic number, because the mean of its divisors is an integer number (14084286768).

Almost surely, 2^73942505511 is an apocalyptic number.

73942505511 is a deficient number, since it is larger than the sum of its proper divisors (38731788633).

73942505511 is a wasteful number, since it uses less digits than its factorization.

73942505511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521071701.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 73942505511 in words is "seventy-three billion, nine hundred forty-two million, five hundred five thousand, five hundred eleven".