137049396421 has 16 divisors (see below), whose sum is σ = 158051672064. Its totient is φ = 116403565824.

The previous prime is 137049396403. The next prime is 137049396427. The reversal of 137049396421 is 124693940731.

It is not a de Polignac number, because 137049396421 - 2³³ = 128459461829 is a prime.

It is a super-3 number, since 3×137049396421³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137049396427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3725500 + ... + 3762106.

It is an arithmetic number, because the mean of its divisors is an integer number (9878229504).

Almost surely, 2^137049396421 is an apocalyptic number.

It is an amenable number.

137049396421 is a deficient number, since it is larger than the sum of its proper divisors (21002275643).

137049396421 is a wasteful number, since it uses less digits than its factorization.

137049396421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41460.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 137049396421 in words is "one hundred thirty-seven billion, forty-nine million, three hundred ninety-six thousand, four hundred twenty-one".