618653513880402 has 128 divisors (see below), whose sum is σ = 1661293105274880. Its totient is φ = 148327288093440.

The previous prime is 618653513880401. The next prime is 618653513880439. The reversal of 618653513880402 is 204088315356816.

It is not an unprimeable number, because it can be changed into a prime (618653513880401) 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, 875940424 + ... + 876646412.

It is an arithmetic number, because the mean of its divisors is an integer number (12978852384960).

Almost surely, 2^{618653513880402} is an apocalyptic number.

618653513880402 is an abundant number, since it is smaller than the sum of its proper divisors (1042639591394478).

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

618653513880402 is a wasteful number, since it uses less digits than its factorization.

618653513880402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851928.

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 618653513880402 in words is "six hundred eighteen trillion, six hundred fifty-three billion, five hundred thirteen million, eight hundred eighty thousand, four hundred two".