4020157890460 has 24 divisors (see below), whose sum is σ = 8456713760880. Its totient is φ = 1605323691264.

The previous prime is 4020157890451. The next prime is 4020157890479. The reversal of 4020157890460 is 640987510204.

It is a self number, because there is not a number n which added to its sum of digits gives 4020157890460.

It is a congruent number.

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, 171204525 + ... + 171228004.

It is an arithmetic number, because the mean of its divisors is an integer number (352363073370).

Almost surely, 2^{4020157890460} is an apocalyptic number.

It is an amenable number.

4020157890460 is an abundant number, since it is smaller than the sum of its proper divisors (4436555870420).

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

4020157890460 is a wasteful number, since it uses less digits than its factorization.

4020157890460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342433125 (or 342433123 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 4020157890460 in words is "four trillion, twenty billion, one hundred fifty-seven million, eight hundred ninety thousand, four hundred sixty".