44157542140 has 48 divisors (see below), whose sum is σ = 94410634752. Its totient is φ = 17345608256.

The previous prime is 44157542137. The next prime is 44157542147. The reversal of 44157542140 is 4124575144.

It is a self number, because there is not a number n which added to its sum of digits gives 44157542140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44157542147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197577 + ... + 356863.

It is an arithmetic number, because the mean of its divisors is an integer number (1966888224).

Almost surely, 2^44157542140 is an apocalyptic number.

It is an amenable number.

44157542140 is an abundant number, since it is smaller than the sum of its proper divisors (50253092612).

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

44157542140 is a wasteful number, since it uses less digits than its factorization.

44157542140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159546 (or 159544 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 44157542140 in words is "forty-four billion, one hundred fifty-seven million, five hundred forty-two thousand, one hundred forty".