2157424405149 has 32 divisors (see below), whose sum is σ = 3125650679424. Its totient is φ = 1315729981440.

The previous prime is 2157424405127. The next prime is 2157424405189. The reversal of 2157424405149 is 9415044247512.

It is not a de Polignac number, because 2157424405149 - 2⁷ = 2157424405021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2157424405098 and 2157424405107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157424405189) 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, 40874994 + ... + 40927740.

It is an arithmetic number, because the mean of its divisors is an integer number (97676583732).

Almost surely, 2^{2157424405149} is an apocalyptic number.

It is an amenable number.

2157424405149 is a deficient number, since it is larger than the sum of its proper divisors (968226274275).

2157424405149 is a wasteful number, since it uses less digits than its factorization.

2157424405149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62157.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 2157424405149 in words is "two trillion, one hundred fifty-seven billion, four hundred twenty-four million, four hundred five thousand, one hundred forty-nine".