49201620918 has 16 divisors (see below), whose sum is σ = 98420698560. Its totient is φ = 16397630856.

The previous prime is 49201620913. The next prime is 49201620973. The reversal of 49201620918 is 81902610294.

It is a super-3 number, since 3×49201620918³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49201620918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49201620913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690580 + ... + 758487.

It is an arithmetic number, because the mean of its divisors is an integer number (6151293660).

Almost surely, 2^49201620918 is an apocalyptic number.

49201620918 is an abundant number, since it is smaller than the sum of its proper divisors (49219077642).

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

49201620918 is a wasteful number, since it uses less digits than its factorization.

49201620918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454731.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 49201620918 in words is "forty-nine billion, two hundred one million, six hundred twenty thousand, nine hundred eighteen".