28155601342 has 16 divisors (see below), whose sum is σ = 46172328192. Its totient is φ = 12770354520.

The previous prime is 28155601339. The next prime is 28155601427. The reversal of 28155601342 is 24310655182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371888 + ... + 1392259.

It is an arithmetic number, because the mean of its divisors is an integer number (2885770512).

Almost surely, 2^28155601342 is an apocalyptic number.

28155601342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28155601342 is a deficient number, since it is larger than the sum of its proper divisors (18016726850).

28155601342 is a wasteful number, since it uses less digits than its factorization.

28155601342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764623.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 28155601342 in words is "twenty-eight billion, one hundred fifty-five million, six hundred one thousand, three hundred forty-two".