611920485900 has 504 divisors, whose sum is σ = 2159595620784. Its totient is φ = 149821747200.

The previous prime is 611920485871. The next prime is 611920485901. The reversal of 611920485900 is 9584029116.

611920485900 is a `hidden beast` number, since 6 + 1 + 19 + 2 + 0 + 48 + 590 + 0 = 666.

611920485900 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (611920485901) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 50805279 + ... + 50817321.

It is an arithmetic number, because the mean of its divisors is an integer number (4284911946).

Almost surely, 2^611920485900 is an apocalyptic number.

611920485900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611920485900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079797810392).

611920485900 is an abundant number, since it is smaller than the sum of its proper divisors (1547675134884).

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

611920485900 is a wasteful number, since it uses less digits than its factorization.

611920485900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12133 (or 12111 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 611920485900 in words is "six hundred eleven billion, nine hundred twenty million, four hundred eighty-five thousand, nine hundred".