1534398984690 has 128 divisors (see below), whose sum is σ = 4326851837952. Its totient is φ = 343323083520.

The previous prime is 1534398984683. The next prime is 1534398984707. The reversal of 1534398984690 is 964898934351.

It is a super-2 number, since 2×1534398984690² (a number of 25 digits) contains 22 as substring.

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, 55614639 + ... + 55642221.

It is an arithmetic number, because the mean of its divisors is an integer number (33803529984).

Almost surely, 2^{1534398984690} is an apocalyptic number.

1534398984690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1534398984690 is an abundant number, since it is smaller than the sum of its proper divisors (2792452853262).

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

1534398984690 is a wasteful number, since it uses less digits than its factorization.

1534398984690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40584.

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 1534398984690 in words is "one trillion, five hundred thirty-four billion, three hundred ninety-eight million, nine hundred eighty-four thousand, six hundred ninety".