1015478147400 has 192 divisors, whose sum is σ = 3285799516800. Its totient is φ = 258945730560.

The previous prime is 1015478147399. The next prime is 1015478147401. The reversal of 1015478147400 is 47418745101.

It is an interprime number because it is at equal distance from previous prime (1015478147399) and next prime (1015478147401).

It is a super-2 number, since 2×1015478147400² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1015478147401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60118156 + ... + 60135044.

It is an arithmetic number, because the mean of its divisors is an integer number (17113539150).

Almost surely, 2^{1015478147400} is an apocalyptic number.

1015478147400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015478147400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642899758400).

1015478147400 is an abundant number, since it is smaller than the sum of its proper divisors (2270321369400).

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

1015478147400 is a wasteful number, since it uses less digits than its factorization.

1015478147400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21288 (or 21279 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 1015478147400 in words is "one trillion, fifteen billion, four hundred seventy-eight million, one hundred forty-seven thousand, four hundred".