40420154321512 has 16 divisors (see below), whose sum is σ = 86614616403360. Its totient is φ = 17322923280624.

The previous prime is 40420154321509. The next prime is 40420154321543. The reversal of 40420154321512 is 21512345102404.

It is a super-2 number, since 2×40420154321512² (a number of 28 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 3 ways as a sum of consecutive naturals, for example, 360894234958 + ... + 360894235069.

It is an arithmetic number, because the mean of its divisors is an integer number (5413413525210).

Almost surely, 2^{40420154321512} is an apocalyptic number.

It is an amenable number.

40420154321512 is an abundant number, since it is smaller than the sum of its proper divisors (46194462081848).

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

40420154321512 is a wasteful number, since it uses less digits than its factorization.

40420154321512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721788470040 (or 721788470036 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 40420154321512 its reverse (21512345102404), we get a palindrome (61932499423916).

The spelling of 40420154321512 in words is "forty trillion, four hundred twenty billion, one hundred fifty-four million, three hundred twenty-one thousand, five hundred twelve".