49145926446557 has 16 divisors (see below), whose sum is σ = 49754253542400. Its totient is φ = 48542485555200.

The previous prime is 49145926446553. The next prime is 49145926446607. The reversal of 49145926446557 is 75564462954194.

It is a cyclic number.

It is not a de Polignac number, because 49145926446557 - 2² = 49145926446553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49145926446553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13571069 + ... + 16806717.

It is an arithmetic number, because the mean of its divisors is an integer number (3109640846400).

Almost surely, 2^{49145926446557} is an apocalyptic number.

It is an amenable number.

49145926446557 is a deficient number, since it is larger than the sum of its proper divisors (608327095843).

49145926446557 is a wasteful number, since it uses less digits than its factorization.

49145926446557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236404.

The product of its digits is 1306368000, while the sum is 71.

The spelling of 49145926446557 in words is "forty-nine trillion, one hundred forty-five billion, nine hundred twenty-six million, four hundred forty-six thousand, five hundred fifty-seven".