1213928896938 has 32 divisors (see below), whose sum is σ = 2453560492032. Its totient is φ = 400366014000.

The previous prime is 1213928896927. The next prime is 1213928896969. The reversal of 1213928896938 is 8396988293121.

It is a super-3 number, since 3×1213928896938³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141978 + ... + 1564613.

It is an arithmetic number, because the mean of its divisors is an integer number (76673765376).

Almost surely, 2^{1213928896938} is an apocalyptic number.

1213928896938 is an abundant number, since it is smaller than the sum of its proper divisors (1239631595094).

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

1213928896938 is a wasteful number, since it uses less digits than its factorization.

1213928896938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707850.

The product of its digits is 80621568, while the sum is 69.

The spelling of 1213928896938 in words is "one trillion, two hundred thirteen billion, nine hundred twenty-eight million, eight hundred ninety-six thousand, nine hundred thirty-eight".