1398877595772 has 24 divisors (see below), whose sum is σ = 3268013782656. Its totient is φ = 465725952048.

The previous prime is 1398877595767. The next prime is 1398877595777. The reversal of 1398877595772 is 2775957788931.

It is an interprime number because it is at equal distance from previous prime (1398877595767) and next prime (1398877595777).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398877595777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70812198 + ... + 70831949.

It is an arithmetic number, because the mean of its divisors is an integer number (136167240944).

Almost surely, 2^{1398877595772} is an apocalyptic number.

1398877595772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1398877595772 is an abundant number, since it is smaller than the sum of its proper divisors (1869136186884).

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

1398877595772 is a wasteful number, since it uses less digits than its factorization.

1398877595772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141644977 (or 141644975 counting only the distinct ones).

The product of its digits is 1867017600, while the sum is 78.

The spelling of 1398877595772 in words is "one trillion, three hundred ninety-eight billion, eight hundred seventy-seven million, five hundred ninety-five thousand, seven hundred seventy-two".