4172768947542 has 48 divisors (see below), whose sum is σ = 9348500993040. Its totient is φ = 1239655487616.

The previous prime is 4172768947541. The next prime is 4172768947549. The reversal of 4172768947542 is 2457498672714.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172768947541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70921573 + ... + 70980384.

It is an arithmetic number, because the mean of its divisors is an integer number (194760437355).

Almost surely, 2^{4172768947542} is an apocalyptic number.

4172768947542 is an abundant number, since it is smaller than the sum of its proper divisors (5175732045498).

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

4172768947542 is a wasteful number, since it uses less digits than its factorization.

4172768947542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141902017 (or 141902004 counting only the distinct ones).

The product of its digits is 189665280, while the sum is 66.

The spelling of 4172768947542 in words is "four trillion, one hundred seventy-two billion, seven hundred sixty-eight million, nine hundred forty-seven thousand, five hundred forty-two".