201193951497 has 16 divisors (see below), whose sum is σ = 334452283392. Its totient is φ = 104516338320.

The previous prime is 201193951481. The next prime is 201193951613. The reversal of 201193951497 is 794159391102.

It is not a de Polignac number, because 201193951497 - 2⁴ = 201193951481 is a prime.

It is a super-2 number, since 2×201193951497² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201193951447) 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, 435484513 + ... + 435484974.

It is an arithmetic number, because the mean of its divisors is an integer number (20903267712).

Almost surely, 2^201193951497 is an apocalyptic number.

It is an amenable number.

201193951497 is a deficient number, since it is larger than the sum of its proper divisors (133258331895).

201193951497 is a wasteful number, since it uses less digits than its factorization.

201193951497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870969508.

The product of its (nonzero) digits is 612360, while the sum is 51.

The spelling of 201193951497 in words is "two hundred one billion, one hundred ninety-three million, nine hundred fifty-one thousand, four hundred ninety-seven".