28753457942 has 32 divisors (see below), whose sum is σ = 47576522880. Its totient is φ = 12924249280.

The previous prime is 28753457939. The next prime is 28753457959. The reversal of 28753457942 is 24975435782.

It is a super-2 number, since 2×28753457942² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1328693 + ... + 1350159.

It is an arithmetic number, because the mean of its divisors is an integer number (1486766340).

Almost surely, 2^28753457942 is an apocalyptic number.

28753457942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28753457942 is a deficient number, since it is larger than the sum of its proper divisors (18823064938).

28753457942 is a wasteful number, since it uses less digits than its factorization.

28753457942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22156.

The product of its digits is 16934400, while the sum is 56.

The spelling of 28753457942 in words is "twenty-eight billion, seven hundred fifty-three million, four hundred fifty-seven thousand, nine hundred forty-two".