1202609387640 has 256 divisors, whose sum is σ = 3866457369600. Its totient is φ = 298563584000.

The previous prime is 1202609387633. The next prime is 1202609387671. The reversal of 1202609387640 is 467839062021.

It is a self number, because there is not a number n which added to its sum of digits gives 1202609387640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16410280 + ... + 16483400.

It is an arithmetic number, because the mean of its divisors is an integer number (15103349100).

Almost surely, 2^{1202609387640} is an apocalyptic number.

1202609387640 is a gapful number since it is divisible by the number (10) 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 1202609387640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933228684800).

1202609387640 is an abundant number, since it is smaller than the sum of its proper divisors (2663847981960).

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

1202609387640 is a wasteful number, since it uses less digits than its factorization.

1202609387640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73318 (or 73314 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 1202609387640 in words is "one trillion, two hundred two billion, six hundred nine million, three hundred eighty-seven thousand, six hundred forty".