1081375457400 has 288 divisors, whose sum is σ = 4212371879040. Its totient is φ = 243482215680.

The previous prime is 1081375457399. The next prime is 1081375457417. The reversal of 1081375457400 is 47545731801.

1081375457400 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 3 + 75 + 4 + 574 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 203727 + ... + 1484673.

Almost surely, 2^{1081375457400} is an apocalyptic number.

1081375457400 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 1081375457400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106185939520).

1081375457400 is an abundant number, since it is smaller than the sum of its proper divisors (3130996421640).

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

1081375457400 is a wasteful number, since it uses less digits than its factorization.

1081375457400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281043 (or 1281031 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 1081375457400 in words is "one trillion, eighty-one billion, three hundred seventy-five million, four hundred fifty-seven thousand, four hundred".