997894071602 has 16 divisors (see below), whose sum is σ = 1551933050112. Its totient is φ = 480724862160.

The previous prime is 997894071553. The next prime is 997894071649. The reversal of 997894071602 is 206170498799.

997894071602 is digitally balanced in base 2, because in such base 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 (62).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35437613 + ... + 35465760.

It is an arithmetic number, because the mean of its divisors is an integer number (96995815632).

Almost surely, 2^997894071602 is an apocalyptic number.

997894071602 is a deficient number, since it is larger than the sum of its proper divisors (554038978510).

997894071602 is a wasteful number, since it uses less digits than its factorization.

997894071602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70903633.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The spelling of 997894071602 in words is "nine hundred ninety-seven billion, eight hundred ninety-four million, seventy-one thousand, six hundred two".