1535542271952 has 80 divisors (see below), whose sum is σ = 4272230518080. Its totient is φ = 472444333056.

The previous prime is 1535542271951. The next prime is 1535542271999. The reversal of 1535542271952 is 2591722455351.

It is a junction number, because it is equal to n+sod(n) for n = 1535542271895 and 1535542271904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1535542271951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10918143 + ... + 11057889.

It is an arithmetic number, because the mean of its divisors is an integer number (53402881476).

Almost surely, 2^{1535542271952} is an apocalyptic number.

1535542271952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1535542271952 is an abundant number, since it is smaller than the sum of its proper divisors (2736688246128).

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

1535542271952 is a wasteful number, since it uses less digits than its factorization.

1535542271952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157380 (or 157374 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 51.

The spelling of 1535542271952 in words is "one trillion, five hundred thirty-five billion, five hundred forty-two million, two hundred seventy-one thousand, nine hundred fifty-two".