3654306540420 has 192 divisors, whose sum is σ = 11411850240000. Its totient is φ = 868301199360.

The previous prime is 3654306540383. The next prime is 3654306540427. The reversal of 3654306540420 is 240456034563.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3654306540427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28987725 + ... + 29113515.

It is an arithmetic number, because the mean of its divisors is an integer number (59436720000).

Almost surely, 2^{3654306540420} is an apocalyptic number.

3654306540420 is a gapful number since it is divisible by the number (30) 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 3654306540420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5705925120000).

3654306540420 is an abundant number, since it is smaller than the sum of its proper divisors (7757543699580).

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

3654306540420 is a wasteful number, since it uses less digits than its factorization.

3654306540420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127338 (or 127336 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 3654306540420 in words is "three trillion, six hundred fifty-four billion, three hundred six million, five hundred forty thousand, four hundred twenty".