7540155534012 has 48 divisors (see below), whose sum is σ = 18014309198592. Its totient is φ = 2453961565440.

The previous prime is 7540155533993. The next prime is 7540155534019. The reversal of 7540155534012 is 2104355510457.

It is a super-2 number, since 2×7540155534012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540155534019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41406064 + ... + 41587767.

It is an arithmetic number, because the mean of its divisors is an integer number (375298108304).

Almost surely, 2^{7540155534012} is an apocalyptic number.

It is an amenable number.

7540155534012 is an abundant number, since it is smaller than the sum of its proper divisors (10474153664580).

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

7540155534012 is a wasteful number, since it uses less digits than its factorization.

7540155534012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82994018 (or 82994016 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 7540155534012 in words is "seven trillion, five hundred forty billion, one hundred fifty-five million, five hundred thirty-four thousand, twelve".