431950621954 has 4 divisors (see below), whose sum is σ = 647925932934. Its totient is φ = 215975310976.

The previous prime is 431950621939. The next prime is 431950621969. The reversal of 431950621954 is 459126059134.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (431950621939) and next prime (431950621969).

It can be written as a sum of positive squares in only one way, i.e., 402175393929 + 29775228025 = 634173^2 + 172555^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431950621898 and 431950621907.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107987655487 + ... + 107987655490.

Almost surely, 2^431950621954 is an apocalyptic number.

431950621954 is a deficient number, since it is larger than the sum of its proper divisors (215975310980).

431950621954 is a wasteful number, since it uses less digits than its factorization.

431950621954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215975310979.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 431950621954 in words is "four hundred thirty-one billion, nine hundred fifty million, six hundred twenty-one thousand, nine hundred fifty-four".