1539974661120 has 704 divisors, whose sum is σ = 6325249651200. Its totient is φ = 348019752960.

The previous prime is 1539974661061. The next prime is 1539974661131. The reversal of 1539974661120 is 211664799351.

1539974661120 is a `hidden beast` number, since 1 + 5 + 399 + 74 + 6 + 61 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 86114580 + ... + 86132460.

Almost surely, 2^{1539974661120} is an apocalyptic number.

1539974661120 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 1539974661120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3162624825600).

1539974661120 is an abundant number, since it is smaller than the sum of its proper divisors (4785274990080).

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

1539974661120 is a wasteful number, since it uses less digits than its factorization.

1539974661120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18011 (or 17987 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 1539974661120 in words is "one trillion, five hundred thirty-nine billion, nine hundred seventy-four million, six hundred sixty-one thousand, one hundred twenty".