1541397083781 has 32 divisors (see below), whose sum is σ = 2180156404608. Its totient is φ = 965345576960.

The previous prime is 1541397083729. The next prime is 1541397083851. The reversal of 1541397083781 is 1873807931451.

It is a cyclic number.

It is not a de Polignac number, because 1541397083781 - 2²¹ = 1541394986629 is a prime.

It is a super-2 number, since 2×1541397083781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541397483781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61025551 + ... + 61050803.

It is an arithmetic number, because the mean of its divisors is an integer number (68129887644).

Almost surely, 2^{1541397083781} is an apocalyptic number.

It is an amenable number.

1541397083781 is a deficient number, since it is larger than the sum of its proper divisors (638759320827).

1541397083781 is a wasteful number, since it uses less digits than its factorization.

1541397083781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27461.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 1541397083781 in words is "one trillion, five hundred forty-one billion, three hundred ninety-seven million, eighty-three thousand, seven hundred eighty-one".